Repository: UIHistories Project: Course Catalog - 1889-1890 [PAGE 83]

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SPECIAL STUDIES.

77

observe and assist in practical entomological w o r k and original research. Geology.—The course in geology covers a period of twenty-t«vo weeks, t w o hours daily. T h e scheme of instruction comprises: T h e study of a series of localities in which great surface changes have recently taken place, in order to discover the characteristics of the forces which produced the changes and the tool-marks by which their action in former times may be traced. T h e mineral composition of the different kinds of rocks; the changes produced in their composition by the action of underground w a t e r ; the conditions under which each species was formed and the relation between these conditions, and the structure of the resulting rock; a series of analyses covering most of the varieties of crystalline and sedimentary rocks, and the collection and identification of such erratics as can be obtained from the drift. A somewhat rapid review of the qualities and distribution of those substances found most useful in the arts, together with the conditions which have produced them. A study of the sub-divisions of geologic time as laid down in Dana's Manual, with the physical and organic changes which characterize them, and the distribution of the rocks laid down during each period. A n analytical study of the larger groups of fossils, with many of the more common genera and species. A second course of 11 weeks, 2 hours daily, is offered to students from the chemical, civil engineering, and language courses, in which the entire subject is outlined; detailed study is made of a few of the more important points, and some acquaintance with both rocks and fossils is gained. A third course, one hour daily for 11 weeks, for students in mining, is devoted entirely to a detailed study of the origin, qualities, and distribution of substances having economic value. Mineralogy.—Fourteen w e e k s ; about six weeks are occupied in lectures on crystallography; N a u m a n ' s system of symbols is used and explained. A collection of models, comprising the most important forms and combinations in the various systems of crystalization, is used for illustration and study. T h e remainder of the term is occupied by the de-