McGill University Thèses et mémoires publiés en 1935

The nature of water adsorption on cellulose has been the subject of considerable controversy. It was hoped that further information regarding the system cellulose - water would be obtained by measuring the heats of wetting and the dielectric constants of cellulose containing varying amounts of adsorbed water. An experimental technic not previously applied to heat of wetting measurements was used. [...]  Lire la suite

It was of interest to prepare and study thesimplest member of the series, Y-benzoylbutyronitrile (I) and to learn what connection, if any, there was between the degree of substitution and the course of the reaction. Nitrites A and D, for example, on bromination gave either bromopyridines (six membered rings) or open chain substitution products that readily lost the elements of hydrogen bromide to yield cyclopropanes (three membered rings). [...]  Lire la suite

Any drama may contain elements of both the realistic and romantic. In one respect it may deal with life as it is inactuality; in another, it may turn its back upon life altogether. The characters an author creates, for example, may bethe normal men and women of everyday life: they are realistic; he may, however, put these characters through a series of eventsof adventure and passion that commonplace people rarely encounter the adventures of a D'Artagnan or a Count of Monte Cristo: that is romantic.An author may choose to point out an idea or teach a lesson derived from or …  Lire la suite

The catalytic hydrogenation of oils as anindustrial process is becoming more widespread withthe advance of years. It is safe to say that itsusefulness could be greatly increased, and will bewhen more is known about the mechanics of the reaction. [...]  Lire la suite

This thesis, while not attempting to place any false emphasis upon the importance of the dramatic work of Sir William Davenant, nevertheless aims at putting such stress upon his effect on English drama as seems to be justified by the scope of his work. There is also some attempt made to relate the influences of the period upon Davenant, to evaluate the character of the man himself, and to defend him from false criticism both of his work and his methods. [...]  Lire la suite

Obesity, by definition, is a condition characterized by the accumulation and diffuse distribution of fatin excess of what is normal. Obviously obesity can result only from a persistent positive energy balance - an excessfood intake over that normally disposed of by the body. Whether or not this positive energy balance - the lack of adjustment of intake to expenditure of energy - is due to some endocrine disturbance has been a question of longstanding. [...]  Lire la suite

Paul Claudel, Par sa conversion remarquable, par la sublimité de sa pensée, tient peut-être une des premières places entre les écrivains contemporains. En dépit d'une enfance passée dans une atmosphère irréligieuse d'une jeunesse influencée par la philosophie matérialiste de son époque, il est tout à coup devenu croyant. [...]  Lire la suite

"Recent criticism of 'Piers Plowman' has done more to weaken the hold of opinions once generally accepted than to replaoe them by others better founded". Kenneth Sisam in his "Fourteenth Century Verse and Prose" makes the above statement in the introduction to his selection from that poem. [...]  Lire la suite

The short story represents one of the most interesting paradoxes in literature; for while it is one of the oldest of literary forms, it is also one of the most recent. The art of brief narration is as old as the Book of "Ruth," the "Cupid and Psyche" of Apuleius, "The Matron of Ephesus" of Petronius, and "The Pardoner's Tale" of Chaucer; and yet it is as new as Poe and Maupassant, as Chekhov and Katherine Mansfield, as Anderson and Hemingway; as new, in fact, as the latest product of the experimental magazine. [...]  Lire la suite

Polymerization processes have been the subject of a great deal of research partlcularly with regard to the chemistry of rubber, poly-saccharides and other naturally occurring substances of high molecular weight. Such studies have concerned themselves chiefly with the polymerization of materials containing conjugated double bonds, such as butadiene and isoprene in rubber chemistry or with materials containingone or more functional groups (hydroxyl, carboxyl,. oxide, etc.) as exemplified in studies of polysaccharides and synthetic resins.The polymerization of unsaturated aliphatic acids and their esters have curiously enough received relatively little attention although complex mixtures such as linseed and chinawood oils have been …  Lire la suite

During the last few years many bacteriologists havebecome increasingly interested in the changes that take placein bacteria and bacterial colonies during growth. In purecultures the appearance of colonies which differ markedly incertain clearly defined characters from the normal type havebeen repeatedly observed. This phenomenon, which is termed'dissociation' for reasons stated below, has been studied ina certain group of acid-fast bacteria - the Mycobacteria.  Lire la suite

The subject matter of this thesis is concerned with the question of homogeneous unimolecular gas reactions, a sharply restricted but important field of chemical kinetics.The beginning o£ chemical kinetics lies far back in the history of chemistry, but it is only in the past two or three decades that the subject has been recognized as a definite branch of the science, and has made sound explanations of chemical mechanisms that form a distinct contribution. [...]  Lire la suite

On the basis of clinical observations Halban (55) in 1905, described the placenta as an organ of internal secretion. Oestrus changes in the whole genital tract of virgin animals were observed after the injection of a lipoid extracted from placenta by Iscovesco (65)(66) and Fellner(44) in 1912. [...]  Lire la suite

The world for the past five years has presented a curious spectacle. Each nation has been desperately trying to give away its goods by bounties mn exports, depreciation of the currency and a lowering of the general wage-scale while at the same time endeavouring to stop the incoming flow of goods across its frontiers by means of quotas, sanitary regularions and ever-mounting tariffs. The net result of all thi s has been a definitely poorer world. [...]  Lire la suite

The following investigation was undertaken in connection with theCanadian-American Relations Study launched by the Carnegie Endowment for International Peace. The object of this monograph is a consideration of those attitudes of Canadians to the United States which have secured definition through the attempt to build up a distinctive national life in Canada. The problem has been approached from two different though complementary points of view. [...]  Lire la suite

Sucrose, which is commercially known as sugar, is found in a large number of vegetable products. Two plants, however, supply practically all the world's sugar. These are the sugar-cane, grown in tropical countries, and the sugar beet, grown in Europe, the United states and Canada. As this problem is only concerned with cane sugar, the cultivation andmanufacture of beet sugar will not be considered. [...]  Lire la suite

Quand André Antoine fit représenter en 1892 l'Envers d'une Sainte, premiere oeuvre dramatique de FranQois de Curel, on n'attendait du Thèâtre-Libre que des oenvres naturalistes. C'était du point de vue de l'étude des moeurs et de l'exactitude de la peinture d'un milieu que cette pièce plut aux critiques; et c'était 1'analyse psychologique profonde et déconcertante qui les frappa comme la marque caractéristique et originale de l'auteur a ses débuts. [...]  Lire la suite

Livestock farming is the staple industry in many parts of the province of Quebec. The region designated as the Eastern Townships is one of the best known districts in Canada for dairying and stock raising. To this region, pastures, therefore, become of fundamental importance, farmers depending on them to furnish keep for their cattle for a period of 150 to 170 days from May to October each year. [...]  Lire la suite

D’un bout à l'autre du continent, la terre d’Amérique fut d'abord une terre française et catholique. Canadiens français, par conséquent, Acadiens et Franco-Américains colons de langue française établis aux États-Unis ou dans les possessions américaines, sont taus membres de la même famille. lIs ont tous une origine commune. Un très grand nombre de Canadiens-Français ont fondé des villes aux États-Unis. A Montreal naquit Pierre Lemoyne d'Iberville, fondateur de la Louisiane et de Mobile (Alabama). A la Rivière du Loup naquit John McLaughlin le fondateur deL’Oregon. Le fondateur de St. Charles (Missouri), Louis Blanchette, naquit à Saint-Henri-de-Lauzon.[…] . Le maire de …  Lire la suite

The complexity of soil organic matter is enormous. Carbon, nitrogen, sulphur and phosphorus constitute a large part of the organic matter in the soi1. From the molecular compounds of these four elements soil organisms derive most of their energy, and plants assimilate the molecular groups of these elements to build up their tissue. [...]  Lire la suite

In spite of the faot that the disappearanoe of a menisous, the sharp visibLe line of dematcation between a liquid and the vapor above it. was observed over a centuxy ago. thereis still considerable oontroversy over the natuxe of the changes giving rise to the phenomenon. In general two points of view have been adopted. [...]  Lire la suite

The purpose of the work described herein was to investigate the catalytic activity of molten metals, especially in reference to tte current theories of the structure of catalyst surf8ces. To this end the decomposition of methyl alcohol on zinc was examined by the static method. A study of other reactions on zinc and tin catalysts was attempted. An attempt to investigate the decomposition of ammonia on a liquid silver surface by the flow method was made employing a rotating reaction chamber. [...]  Lire la suite

The work to be described in this thesis is a continuation of a general investigation of the system sulphur dioxide-calcium oxide-water, which was started in this laboratory several years ago. Up to that time there was littIe available data on equilibria existing in aqueous solutions of sulphurous acid and its calcium salts, and much information was lacking in accuracy as well as in scope.  Lire la suite

Of all the injurious insects, the Scolytidae are certainly among those which were most thoroughly studied by entomologists. For all that, however, about the only thing we know on the majority of those insects, is what has been written in the original description. Indeed, in Amerlica, apart from some species belonging to the genus Dendroctonus which have been quite well worked out, most of the others were rather considered as of secondary economic importance and their study has been neglected. [...]  Lire la suite

It is a we11 known fact that the last traces of water of crystal11zation are often very difficult to remove from a substance even when the hydrate gives a definite vapour pressure. A reasonable supposition 1s that this difficulty ie due to the retention ot a portion of the water by the solid in the form of a solid solution or as a condensed layer of gas on the surface. [...]  Lire la suite

After the passing of centuries, it is often difficult, even well-nigh impossible, to come to a definite decision with regard to certain phases of everyday life amongst the ordinaryfolk of ancient peoples, if archaeological remains are not very helpful and literary references few and far between. Thus it follows that the question as to the wide-spread prevalence of many customs is one which we are often content to settle by an occasional misinterpreted statement, or at least by two or three chance references which, perhaps, were the exception rather than the establiehed rule. Take for instanoe the practice of human …  Lire la suite

The liver fluke of sheep, Fasciola hepatica Linnaeus,1758 is an organism which has been and is, of much interest in the field of Parasitology. The parasite has been investigated by workers of many countries where it is endemic, the life-cycle being typical of the class Trematoda, of which Fasciola hepatica is now a classicexample for teaching purposes. Requirement of a primary intermediate host is essential, usually a mollusc of the family Lymnaeidae. A very considerable amount of literature is available on this subject, the firstclassical work appearing in the latter part of the nineteenth century. [...]  Lire la suite

The breccias occurring in the vicinity of Montreal are among the most interesting geological features of the region. It is not surprising, therefore, that these rocks have received much attention from geologists during the last eighty years, and that they have formed the subject of several publications. Excellent though these works may be, they are largely descriptive and concern themselves chiefly with the petrography of the matrices and inclusions and with the palaeontology of fossils in fragments contained in the breccia. [...]  Lire la suite

Data is herein reported, upon the effect of the removal of a nitrogenous fraction present in cod liver oils upon growth, egg production and mortality of poultry. A technique for the removal of a nitrogenous fraction of cod liver oils by acid alcohol extraction, without interfering with the vitamin potency of the oils, was established. Oil processed in this way was fed to a large group of young chickens during the brooding, rearing and egg production periods. This treatment Vias controlled by the feeding of the same oil, unprocessed, to a comparable lot of chicks for the same period. The …  Lire la suite

Impressionism in criticism has been subjected to much vague thinking and, in consequence, to vaguer utterance. It is too often assumed by critics who ought to know better, that impressionistic criticism, an orchidaceous bloom of the decadence, was transplanted to England from the cafe's of Montmartre and Montparnasse during the Eighteen Eighties; thatfor a time, it poured out its pale and exotic life in the aesthetic hot-house known as the "Beardsley Period;" and that it drooped and withered in the year 1895 in the harsh blast of Philistinism that followed the trial of Oscar Wilde. [...]  Lire la suite

In regard to terminology, Hypophysis cerebri and Glandula pituitaria cerebri are used in this thesis without distinction. Basically, it is difficult to decide which term is preferable. The term hypophysis has been considered as the more correct since it denotes only an anatomical position. Even so, the word has its disadvantages, for it means "to growunder"; and since two of the three parts of the hypophysis cerebri grow upwards, its use is obviously inexact. [...]  Lire la suite

Metals are found in nature occasionally native or elemental, but most often in a combined state, as simple or complex oxides, sulfldas, carbonates, or silicates. The metal in these compounds has a positive valenoe, that is each atom is oxidized by the removal of one or two valency electrons. In order to remove these and reduce the metal to the elemental state energy must be supplied. [...]  Lire la suite

A review of modern progress in mining and metallurgical operations reveals no factor more significant than the steady reduction in the cost of concentrating and milling ores. New processes have succeeded one another with bewildering rapidity, and today the gradual perfection of flotation concentration is revealing possibilities of low costs and high recoveries undreamed of a few years ago. In the treatment of ores, the operations of crushing and grinding have ever been of prime importance. [...]  Lire la suite

The chemistry, of the cyanides in general, dates from the early eighteenth century, but the action of aqueous solutions of cyanide on gold was not noted until 1840. At that time the Elkingtons (20) obtained a patent for gold plating electrolytically, using for the electrolyte a solution made by dissolving gold in potassium cyanide with the aid of an electrio current. [...]  Lire la suite

The supply of hydrocarbons from natural gas and from petroleum oils alone is almost unlimited. The commercial significance of such a potential wealth of aldehydes and alcohols is as obvious as the technical importance of the nature of the combustion of hydrocarbon fuels, and both these considerations have prompted a great deal of research. To those who, perforce or perchance, are financially disinterested, the phenomenon of combustion is more attractive from a theoretical than from a practical point of view, and for this reason a multitude of catalytic reactions, which have been reviewed by Marek and Hahn (1), will find …  Lire la suite

In the early days of wireless reception the sheer idea was so novel, so apparently miraculous that its many imperfections were taken as a matter of course, if not unnoticed. A transmission and reception process was highly successful if the listener reported the voices as clearly distinguishable. Whether it is the approach to perfection in all the other mechanisms of our modern life or the intensified competition experienced during depression years by all manufacturers of commodities not essential to human existence or yet the fact that the novelty has worn off man's most recent toy -- the state of affairs …  Lire la suite

The internal photoelectric current in rocksalt crystals previously irradiated with ß and Y rays has been studied. The observed decrease of the current with time has been shown to be due to the growth of a back voltage in the crystal. In these crystals a reverse current flows when the crystal is illuminated, without an external field, shortly after the passageof a photocurrent. This reverse current has been shown to be an ordinary photoelectric current due to the back voltage. [...]  Lire la suite

In dieser Arbeit war mein Bestreben, die organische Entwicklung der Kunst Gottfried Kellers und die engen Beziehungen von Leben und Kunst darzustellen, und zwar zuerst in den einzelnen TIerken und dann in Zusammenfassung, mit besonderer Berücksichtigung der grössten bildenden Einflüss auf die Persönlichkeit und das Schaffen des Epikers, Ethike und Humoristen. [...]  Lire la suite

Du Roure, R. (Supervisor)  Lire la suite

The object of the thesis is well described by its title. It is an attempt to describe the founding, history, and organization of the Montreal Stock Exchange. The first three chapters are historical. The first traces the rise of the Stock Exchange as an institution; the second tells of the conditions under which it evolved in Canada. The third chapter describes the growth of the Exchange from its establishment in 1874 up to the present time. [...]  Lire la suite

May of the the major problems in Parasitology such as the in vivo habits and in vitro cultivation of helminths, are handicapped by a lack of knowledge of the fundamentalprocesses which these phenomena involve. Experimental investigation in Bionomics has been directed chiefly to a study of the optimum developmental temperature of the various life cycle stages; maximum and minimum temperatures which eggs and larvae can withstand, their resistance to desiccation and the like. [...]  Lire la suite

This study was undertaken to endeavour to fill the need for a general survey of the Entozoa found in certain Amphibia - frogs, toads and newts - found in the Province of Quebec,especially in the vicinity of Montreal. Investigations of isolated groups of the fauna found in Amphihia have been made in North America, particularly in the United States, but there is a distinct lack of general surveys and more complete records of the associations in which these Entozoa occur. The present research includes descriptjon of the Entozoa of several species of Amphibia collected in the Province of Quebec, the …  Lire la suite

Progress in the biochemistry of digestive secretions in general, and of gastric juice in particular, is in no way to be compared with the rapid advances made in the other branches of this science. Be it due to the experimental difficulties, which are considerable indeed, or to lack of interest, the fact is that very little is known concerning the chemical composition of these extremely important secretions. As to the composition of the gastric juice, the view expressed by Rosemann in 1927 still may be considered as the one generally accepted. [...]  Lire la suite

The effect of the physical conditions upon the alkaline digestion of wood for the production of cellulose-pulp have been experimentally investigated. The factors which were examined included the effect of wood species, density, moisture content, chip size, wood structure, method of liquor penetration and temperature. From a consideration of the manner in which the reaction rate varies with the base and its concentration, two salient factors have been suggested as governing the mechanism of the alkaline delignification of wood. These are the magnitude of the adsorption and the activity of the base. Hydroxyl ion concentration, nature of the solvent and …  Lire la suite

The Law, the Prophets and the writings of which the Hebrew Scriptures are comprised, and which form the Old Testament of our Bible are the only Classical Hebrew Literature now extant. In this we have the six elements, separate or combined, of universal literature three of which, History, Philosophy and Rhetoric, correspond to the other three Epic, Lyric and Dramatic poetry. (1) [...]  Lire la suite

Why do plants winterkill? How are some able to withstand the coldest temperatures while others are destroyed by the first touch of frost? As early as 1727, Stephen Hales attempted to answer these questions. "Plants of a less durable texture1", he states, "as they abound with a greater proportion of Salt and Water, which is not so strongly attractingas sulphur and air, so are they less able to resist the cold; and as plants are observed to have a greater proportion of Salt and Water in them in the spring, than in the autumn,so are they more easily injured by …  Lire la suite

False wild oats or fatuoids, so-called because of the resemblance they bear to the wild oat Avena fatua, have been found in most varieties of A. sativa and A. byzantina and areanalogous to the speltoids occurring in wheats. The most remarkable feature of the various futuoids is that regardless of the strain in which they originate the one complex ofcharacters involved, namely, callus pubescence, articulation and awning, is common to all fatuoids. In all other morphological characteristics fatuoids resemble the strains in which they originate. [...]  Lire la suite

The problem of the origin of regional foliation in horizontal or gently folded rocks is of great scientific interest. Such foliation is of widespread occurrence in the Grenville series of a part of Quebec lying between the Saguenay river on the east and the Morin anorthosite on the west. The writer believed that it would be interesting, as well as instructive, to apply the method of fabric analysis to the study of the structure of the slightly-deformed Grenville and associated rocks. [...]  Lire la suite

The importance of wholesale and retail trading in the eoonomic system as a whole is not always sufficiently realized. On the basis of records of the Census of Merchandisingand Service Establishments in Canada of 1930, it has been estimated that the total expenses of retail merchandising establishments amounted to $661,347,OOO, those of retail service establishments to $184,736,000. and those of wholesale establishments to $345,842,000 (1) or a grand total for the distributive trades of $1,172,000,000. [...]  Lire la suite

Until recently the oxidation of gaseous compounds has been thought to be a predominantly heterogeneous process. It is now known that practically all these reactions proceed by a chain mechanism. A large number of investigations have been made recently on reactions of this sort, (1), (2), and the general conclusions drawn from them are given below. (1) All these redctionsproceed by a chain mechanism, the termination of the chains being either in the gas or at the wall. If the latter is the case packing the reaction bulb will cause a pronounced retardation. [...]  Lire la suite