McGill University Thèses et mémoires publiés en 1951

Kierstead (Supervisor)  Read more

This study is concerned with a group of twenty husbands and wives of psychiatric in-patients who have come into contact with the social service department of the Allan Memorial Institute of Psychiatry, in Montreal. [...]  Read more

The effects of the administration of gonadal hormones to immature pullets and cockerels have been studied widely. Most of the biochemical work has been carried out during the past ten years, and certain resultant changes in the composition of the blood and liver are well known. [...]  Read more

The anatomic features of the adrenal cortex of the fetus and the newborn infant have long been known to differ strikingly from those of the adult. Morphological studies have demonstrated that the fetal adrenal cortex grows very rapidly during the last trimester of intra-uterine life, a period during which fetal growth proceeds at a maximum rate. [...]  Read more

During the past few years a large amount of information has become available concerning the elements in the region of the periodic table above lead. A sufficient number of new isotopes which decay by alpha particle emission have been produced to permit the regularities in behaviour to be tabulated. [...]  Read more

The subject of this study is the role of Travelers Aid Society (1) in relation to the runaway child. Since it is not possible to evaluate any service to children without also considering them in relation to their enviromnent, T .A. service to the families of runaways must be considered as an integral part of this study. [...]  Read more

It was a stroke of good fortune that Camillo Golgi, in 1872, examined some pieces of brain which were hardened in Muller's fluid and afterwards dipped in silver nitrate solution. As a result of this, Golgi developed a new method which was to bring about a new era in the investigation of the nervous system. [...]  Read more

Ever since it was demonstrated that pathological alterations of the hearts (l-13), arteries(2-18), and kidneys(14,19-22) can result from administration of foreign serum proteins in animals, interest in these lesions has resulted from their apparent resemblance to certain diseases in man whose cause is still unknown. The lesions of the heart have been likened by most investigators to the lesions occurring in the hearts of human cases of rheumatic fever(2,3,4,6,7,8,9,10,ll,12,21); the lesions of the arteries to the lesions occurring in human periarteritis nodosa(2-18,21) and those of the kidney to human glomerulonephritis(14,19-22). Whereas the opinion regarding the comparison of the lesions of …  Read more

The role of the thyroid gland in fish is little understood, while it is well known in mammals, birds and amphibians. Thus, in mammals and birds this gland controls the metabolism. In many amphibians the thyroid is responsible for the metamorphosis occurring at the transition from an aquatic to a terrestrial environment. [...]  Read more

The construction of a pressure-insulated Van de Graaff generator for electron acceleration to give 500 kilovolts was undertaken at the National Research Council of Canada. The generator is of original design, although complying in the main with established principles. One of its features is the successful development of an insulator which seems a good solution thus far to the problem of a horizontal support. [...]  Read more

The area described in this thesis lies in the "Gold Belt" of north western Quebec, a district which, although named for the attractive gold deposits, has become an important producer of base metals, such as copper and zinc. The map-area and the surrounding region lie within the deeply eroded Precambrian Shield, which is made up chiefly of ancient Archaean volcanic rocks, and old crystalline intrusives. [...]  Read more

The study of atherosclerosis has been pursued by men in many parts of the world with Churchillian tenacity. The literature published on the facts, and theories about this disease, can only be described as colossal. [...]  Read more

Judkins, B. (Supervisor)  Read more

The genus Entamoeba Casagrandi et Barbagollo, 1895, from the standpoint of pathogenicity and number of different hosts affected is the most important of all the genera of parasitic amoebae. [...]  Read more

The action of chlorine dioxide and of sodium chlorite, two new bleaching agents used to remove dark coloured lignin impurities from wood pulps, was studied on a wood lignin that had been isolated without much chemical change. Both oxidants produced similar results, converting the insoluble, presumably nonphenolic lignin first into alkali-soluble phenolic substances. [...]  Read more

The theory of univalent functions has its origin in the general theory of conformal representations. The notion "univalent" (the terms : schlicht, simple and bi-uniform are also used) was introduced by Koebe in his paper "Ueber die Uniformisierung beliebiger analytiscehen Kurven" (Goettingen Nachr. 1907). [...]  Read more

Younge, E. R. (Supervisor)  Read more

The effect of genetic diversity on the combining ability of eight inbred lines of corn was investigated using 16 single and nine double crosses. Single crosses combining two dent or two flint inbreds were not significantly different from those combining a dent and a flint. [...]  Read more

This thesis describes the design and construction of a reliable control device for a Wilson cloud chamber working in conjunction with a cyclotron. The problems which arise due to the intense magnetic field of the cyclotron, the necessity for reliable automatic operation of the chamber, and the exigencies of remote control, and their solutions, are discussed in detail. [...]  Read more

The interest in dibenz (l,3)(a,c)cycloheptane and its derivatives developed as a result of two trends of investigation. One group of investigators was concerned with the extension of classical reactions which would produce cyclic structures.  Read more

Of the factors that may govern the rate of a homogeneous chemical reaction in solution, probably the least understood is the part played by the solvent. The lack of a clear understanding of solvent effects on reaction rates can be readily appreciated when it is realized that kinetic interpretations in such systems involve merely as one element the difficulties generally inherent in the interpretation of any physico-chemical behaviour in the liquid state or in solutions. [...]  Read more

The development of a soil profile has been attributed to the acidic substances derived from the decomposition of the organic matter deposited naturally on the soil surface. That such substances actively engage in soil development has been concluded from examination of profiles in the field. [...]  Read more

Considerable interest has been shown in the phenomenon of rigidity and the establishment of its correlates and determiners. The purpose of the present paper is the experimental investigation of the relationship between behavioral rigidity and abstract-concrete mindedness. [...]  Read more

Few of the numerous Chemical Engineering unit operations offer as many diversified and intriguing possibilities as spray drying. With a scope of applications already ranging over a wide section of the Chemical Industry, new, spectacular developments are constantly being discovered. [...]  Read more

It is a principle of common law that if goods are shipped in a general ship (a) without any express contract being made between the shipper of the goods and the ship-owner or if a contract is made, one which does not contain any stipulations relieving the shipowner from liability for loss of/or damage to the goods, the shipowner acts as an insurer of their safety. [...]  Read more

Winkler, C. A. (Supervisor)  Read more

Many electrochemieal processes in industry are still treated more or less as an art, in which the operators have developed particular intuitions to solve the various problems encountered. It has been only during the last fifty years that concerted efforts have been made to consider these processes fram the fundamental views of chemistry and physics. [...]  Read more

A method is described for the study of fractional second activities induced in the cyclotron. A 0.28 sec. period induced in chromium at a threshold of approximately 12.5 Mev. has been assigned to Mn50. [...]  Read more

This is a study of a group of predelinquent children known to a family agency. The agency record of each child is examined for early signs of his maladjustment and for causal factors which may have contributed to the development of this anti-social behaviour. [...]  Read more

Present concepts of electrolyte and water metabolism, and the influence of the adrenal cortex on these important constituents of the body, have their origin in three main areas of observation: in the study of water metabolism, in the study of electrolyte metabolism, and in the study of the function of the adrenal cortex. [...]  Read more

The process of soil podsolization has been studied for over one hundred years but much of the chemistry involved still remains obscure. Two questions which remain unanswered concern the manner of mobilization of iron and aluminum of the A horizon and of their precipitation in the B layer. [...]  Read more

Although acetylcholine as a chemical substance was known as early as 1867 (14), it was not until the discovery of its powerful pharmacological effects by Hunt and Taveau (108), later extended by Dale (49) and others, that the compound attracted the attention of physiologists. [...]  Read more

In Canada mosquitoes are of importance primarily as pests of man and livestock. Their role as vectors of disease is confined solely to the virus of western equine encephalitis. Lacking a public health impetus, study of mosquito biology in Canada has lagged behind that of other countries where diseases such as malaria, yellow fever, filariasis and dengue exist. [...]  Read more

Many substances have been used during the last three decades to influence the course of experimental arteriosclerosis. Amongst these choline and other lipotropic agents have occupied a prominent place. No uniform results have, however, been obtained in these researches, so that it was considered worthwhile to re-investigate the problem, employing the rabbit as experimental animal and choline, which is not only a potent lipotropic substance but also, because of its many physiological functions, a potentially important therapeutic agent. [...]  Read more

The theory of conditioned fear responses proposed by Watson (cited by Young, 29) has been rendered untenable by recent empirical observation. The experience of "uncanniness" has been stressed by English (5) as being an important feature of fear responses where no conditioning was possible. [...]  Read more

Si grand que puisseêtre l'abime entre l'écolier dévoyé du XVe siècle que fut Villon, et le dandy raffiné du XIXe que fut Baudelaire, leur vie et leur tempérament offrent, par certains côtés, des analogies frappantes. Ce sont ces ressemblances, doublées de différences non moins frappantes, qui font l'intérêt d'une comparaison entre la vision que chacun d'eux eut de sa ville natale, Paris. [...]  Read more

The starting point of this thesis is a generalization of polygonal numbers to an arbitrary dimension. Three kinds of numbers are obtained: figurate numbers, powers of numbers, and a third kind, believed to be new, hyperoctahedral numbers. [...]  Read more

During the summer of 1950 a field party under the leadership of Dr. Bogdan Zaborski of McGill University carried out a geographical reconnaissance survey of selected areas in central Alberta for the Geographical Branch of the Department of Mines and Technical Surveys, Ottawa. [...]  Read more

Until very recently it had been an age-old question and a favourite topic of debate to ask whether environment or heredity was responsible for some particular human trait. The implication of such a discussion was that the concepts of environment and heredity were mutually exclusive and if a trait was governed by one, the other could have but very little effect upon it. [...]  Read more

The main object of this work was to investigate the reaction of 2-bromo-2-nitro-1, 3-indandione with pyridine in order to elucidate the chemica1 character of the former compound and of the bromine atom in particular. From the previous publications of other workers it is known that the bromine atom is very active in 2-bromo-2-nitro-1, 3-indandione; therefore two possibilities could be foreseen in the interaction of the above named substances: first, the formation of a pyridinium salt with bromine as an anion, and second, the action of 2-bromo-2-nitro-1, 3-indandione as a brominating and an oxidizing agent on pyridine. [...]  Read more

The belief that man has a tendency to mimic the things that he sees his fellows do, and that he can acquire new modes of behavior by this means, was among the first topics to occupy the attention of the social psychologist. [...]  Read more

Different models of cerebral organization in vision bave been proposed by Lashley (24), Kohler and Wallach (18), and Hebb (ll). Proper evaluation of these theories is hindered by inadequate or inconsistent data pertaining to the locus and extent of the cerebral areas necesaary for normal visual functions, the degree of specialization within these regions, and the types of disturbance produced by their removal. [...]  Read more

It is a tenable theory that there are marked individual differences in the facility with which people apprehend novel and enigmatic features in their perceptual fields and invest these data with probable or plausible meanings. [...]  Read more

It is well recognized that vegetables, such as peas, develop off-flavours during freezing storage if they have not been properly blanched previous to freezing. These off-flavours increase in intensity at least during the first year of storage at -17.8 degrees Celsius. They become noticeable first in unheated samples and then in order of increasing extent of heating. This would indicate that the compounds responsible are formed from some procurer existing in a rather concentrated liquid phase during freezing storage. Diehl, et al. (1936) reported undesirable flavour changes in raw peas as early as six weeks after storage at 120.6 degrees …  Read more

No geological map has been published of the Aillik-Makkovik area, as previous work was not done in sufficient detail to make correlation possible with the rest of the North American Pre-Cambrain, or for that matter, between different sections of the Labrador coast. The correlation of rocks at different sections of the coast is particularly complicated by the imperfect knowledge of the relative age of the tectonic movements of the bedrock. [...]  Read more

The "Rossland volcanic group" is subdivided into two volcanic formations, separated by a dominantly sedimentary formation of Jurassic age. These rocks were folded along north-south axes and subsequently faulted and bent into an arc around a protuberance of the Cretaceous(?) Nelson granodiorite batholith during or just prior to its intrusion. A quartz-diorite stock and tongues, partly sheared, antedate the batholithic stage. Metadiorite, a feldspar-hornblende gneiss with coarse pyroxene-hornblende border facies, was formed by assimilation or metasomatic reconstitution of chiefly volcanic rocks prior to the batholithic stage. Syenite intrudes it in places, in others a gradational contact shows evidence of metasomatic …  Read more

It is not the intention to present in this report an extended history of the application of the disinfection process. Chick (1908), and Chick and Martin (1908 a,b) gave an excellent review of this subject. Wyss (1948) reviewed more recent developments. McCulloch (1946) has given an interesting historical account of the origin of the practice of disinfection. [...]  Read more

"Bernanos? J'ai essayé de lire deux de ses romans - mais je ne le comprends pas" - me dit un jour une bibliothécaire. "Pour ma part, je le hais, Bernanos", me dit une dame professeur d'université. [...]  Read more

This thesis presents a comparison of the steam-side heat-transfer coefficients of condensing steam-air mixtures during film-type and dropwise condensations. Condensation took place on the outside of a vertical five-foot length of 1 1/4 inch extra-heavy copper pipe. Dropwise condensation was produced by the application of a film of octyl mercaptan to the copper surface. [...]  Read more

Heterakis gallinae, the caecal worm of poultry, was described by Taylor (35) as "as perfect a parasite as can be found in that it does no harm to its host". In its normal host, Gallus gallus, the adult stages of the parasite are found in the lumen of the caeca. The larval stages may be found in the lumina and epithelium of the caecal glands as late as the seventh day following infection but usually no tissue invasion is present beyond the tenth day. The degree of typhlitis produced by the larval invasion is variable, depending on the degree of …  Read more