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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The impact of the St. Lawrence Seaway on the port of Montreal.

Slack, Brian. January 1963 (has links)
1959, the year of the opening of the St. Lawrence Seaway, marked the end of an era for the port of Montreal. For the first time in the history of navigation on the St. Lawrence River large ocean vessels gained access to the Great Lakes, and the port of Montreal was no longer the head of ocean navigation for large ocean ships. This study analyses the impact of these recent changes on the port of Montreal, and examines the new role of the port in changed patterns of navigation on the St. Lawrence River. It is a study of one of the most dynamic and important periods in the history of the port of Montreal. It is still too early to attempt to discover the full impact of the Seaway on the port of Montreal.
22

Climatic control of distribution and cultivation of sugar-cane.

Smith, Samuel. I. January 1963 (has links)
Sugar, the commercial product of the sugar-cane, has been a commodity of some prominence in world markets for the past four centuries. Today, the sugar-cane plant is cultivated in a number of countries in the tropics and subtropics--in many of which, conditions do not appear to be ideal. Because of the increasing demand for this commodity over so long a period and in so many diverse areas, sugar-cane has spread widely with the discovery and settlement of new lands, beginning in the 15th century. Subsequent expansion of European and world trade, vagaries of evolving geopolitics, and later, inter-commodity competition induced under differing political conditions helped to continue the spread of the plant. The sugar-cane which remains a major commercial crop, can benefit from a climatological investigation into its growth requirements, for this, in fact, has been very little investigated during the three hundred years of prominence and dispersal.
23

The climate of Knob lake.

Tout, David. G. January 1963 (has links)
The climate of Knob Lake is analyzed by means of a detailed examination of the eight years’ (1955-1962) meteorological records of the first-order weather station operated by the personnel of the McGill Sub-Arctic Research Laboratory. Chapter II deals with the physical controls of climate and Chapter III the dynamic climatology. The main part of the thesis is Chapter IV, which is concerned with an analysis of the meteorological data. The final chapter offers some suggestions as to the use of the data in the field of applied climatology. It is hoped that the numerous tables and figures will aid future research students, working from the Laboratory, who require data of a meteorological nature.
24

The anthropic factor in a Savanna environment. An analysis of the changing relations between man and the physical environment in an attempt to estimate their significance in accounting for the origin and distribution of the savannas in the Rupununi District of British Guinana.

Waddell, Eric. W. January 1963 (has links)
Of all the major vegetational regions recognized on the earth's surface the tropical grasslands are those which most defy definition and on which least agreement has been reached concerning their origin and present environmental controls. The literature on the subject is already extensive, these grasslands having attracted the attention of a large number of natural scientists, in particular botanists, geographers and zoologists, yet almost all this work suffers from 'inadequate field data, and an almost total lack of experimental evidence’. {J. S. Beard, 1953; p. 149.) In consequence, interpretations tend to be highly coloured by, one, the nature of the investigator's own disciplinary training and, two, the field of his experience.
25

Evolution of settlement in Orange County, Vermont, 1760-1960.

Andrews, Martha. L. January 1964 (has links)
This thesis presents an analysis of pioneer settlement and subsequent rural depopulation and land abandonment during the post 200 years in an unrewarding area of northern New England. Orange County was first settled in 1762; population reached its maximum in 1840 and then declined steadily until the 1930’s (see Figure 1). This county, encompassing seventeen towns in east central Vermont, was selected as an example of a small area with economic problems representative of the problems of rural northern New England (the states of Vermont, New Hampshire, and Maine). The county unit, as the only source of adequate and continuous statistical information, determines the areal setting of this study; it is not claimed to be a geographical region.
26

Peasant agriculture in Barbados.

Brack, David. M. January 1964 (has links)
As an earth-bound being man is confronted by two landscapes; the natural and the man-made, and both are of interest to him as an intellectual creature. While both landscapes may cause feelings of awe, or peace, or in some cases apprehension, the emotion aroused by the sight of a man-made landscape is imbued with a deeper feeling of identification which flows from the recognition of the work of fellow creatures. A sign of man in an otherwise empty landscape can change an l-It attitude to an I-Thou attitude, even though the sign may be no more than a vehicle track on the dry surface of a barren desert. Natural and man-made landscapes are of primary interest to the geographer, but while study of the first is likely to be largely objective, aimed at a deeper understanding of nature, study of the second is more subjective and aimed at a deeper understanding of man.
27

The upland surfaces of western Newfoundland.

Brookes, Ian. A. January 1964 (has links)
In Western Newfoundland, erosion surfaces are recognised at the following elevations: 2350-2500', 2100-2300', 1900-2150', 1750- 1900', 1550-1700', 1250-1500', 1100-1350', 1000-1150', 850-1000' and 750-850'. Surfaces below 750' were not investigated. All are considered to be of subaerial origin. By inductive reasoning, based on a recent hypothesis of the evolution of the continental margin of eastern North America, it is tentatively concluded that the group of surfaces above 2000' developed during a Cretaceous - early Cenozoic erosion cycle, and that lower surfaces are of later Cenozoic age. Uplift occurred at the beginning of the Cretaceous, in the mid Cenozoic and in the late Cenozoic. Small vertical intervals between the surfaces are tentatively attributed to periodic positive isostatic responses of the earth's crust to the relief of load by denudation since at least the beginning of the Cretaceous.
28

Albedo measurements of various surfaces in Barbados.

Chia, Lin. S. January 1964 (has links)
The "albedo", A, of a surface is defined as the ratio of, Ir, the radiation reflected by the surface and Io, the radiation incident upon the surface; or, A=Ir/Io. It is expressed either as a percentage or simply as a number. The term "reflectivity coefficient” is used by some authors for the same quantity. It is also understood that the albedo is restricted to the solar component of the radiation spectrum. For the present study the range of wavelengths is set effectively by the capability of the sensing instrument used which, in this case, is limited to the range 0.3 to 2.0 microns for the Kipp and Zonen Solarimeter. The energy emitted by the sun contained in the wavelengths greater than 2.0 microns is small by comparison to the energy contained in the wavelengths specified and can be safely ignored.
29

An analysis of plant, soil and water relations in the northern Rupununi savannas of British Guiana as an aid to understanding their nature and origin.

Eden, Michael. J. January 1964 (has links)
In May 1962 the McGill University Savanna Research Project was established and has been conducted since that date in the Department of Geography, McGill University and in the savannas of the Rupununi District, British Guiana and the Territorio do Rio Branco, Brazil. It is generally recognised that although a very wide range of theory has been propounded to explain the nature and origin of savannas, no one has yet brought forward a single convincing viewpoint which has met with universal acceptance. One reason for this is that the majority of theories extant are based upon inadequate field data with almost a total lack of experimental evidence. The McGill University Savanna Research Project was set up for the purpose of initiating an experimental and observational field programme which it was hoped would shed light upon the ecological relations of the savanna, and would ultimately enable an explanation to be made of the nature and distribution of the savanna vegetation of the region.
30

The spatial structure of Barbadian peasant agriculture.

Henshall, Janet. D. January 1964 (has links)
This study is based on twenty weeks field work in the Caribbean during the months of May, June, July, August and September, 1963. Three weeks of this time were spent working in the libraries of the University of the West Indies at Mona, Jamaica and St. Augustine, Trinidad and of the University of Puerto Rico at San Juan, Puerto Rico. Brief visits were made to other islands, for example Tobago, St. Lucia, Martinique, Antigua and St. Maarten, for comparative purposes. The research project was undertaken as part of the McGill University Geography Department Tropical Programme. In Barbados the Programme has emphasised research into land use and the development of peasant agriculture.

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