12 



instructors of the department ; attendance on these excursions will not 

 be required. 



Natural History 8. Advanced Geology. Mr. Davis. Three 

 hours a week : lectures, collateral reading, field and laboratory work ; 

 open to those who have passed in N. H. 4 ; it is advisable to have taken 

 N. H. 1 also in some previous year. 



The aim will be to guide students in individual study in the library, 

 laboratory, and field. 



The lectures will follow Lyell's *' Principles of Geology," and treat of 

 the history of the science of Geology; evolutionary hypotheses popularly 

 considered; problems encountered in geological surveying; climate ; time 

 ratios ; marine action ; uniformity of geological forces. 



The third hour will include work to supplement these topics as far as 

 possible, by reading and observation. 



Special permission of the Faculty is necessary to open the following 

 courses of the graduate department as regular electives to College under- 

 graduates ; this will ordinarily be given to those who have made good 

 progress in the elementary electives. Courses h, i, and k will not be 

 given in 1881-82. 



[Natural History h. Palceontology. Professor Shaler : two 

 lectures a week, with laboratory work and reading ; open only to those 

 who have passed in N. H. 2 or 5 and N. H. 4, and who can translate 

 scientific French and German at sight ; an acquaintance with N. H. 3 is 

 also desirable. 



This course is intended to give an acquaintance with the geological 

 history of the various organic series, rather from the general point of 

 view of the student of organic life than in the way required by the prac- 

 tical geologist. Although intended to be a complete course in itself, it is 

 also meant as an introduction to Historical Geology (see below). Especial 

 attention is given to the theories concerning the origin and development 

 of animals as far as these questions are brought into view in the palaeon- 

 tological record. The course varies from year to year, but the following 

 synopsis will give a view of the subjects generally treated : Conditions of 

 organic life ; heat, moisture, etc. ; laws of the distribution of life on land 

 and sea ; conditions of fossilization ; metamorphism and the preservation 

 of the geological record ; climatal and other evidence afforded by fossils. 

 General history of the five great divisions of the animal kingdom ; the 

 development of the motor system in animals ; development of the skeletal, 

 nervous, visual, reproductive, and other systems of the five divisions ; 

 theories concerning the appearance and disappearance of animals as shown 

 by fossils ; palseontological history of man.] 



[N. H. i. Historical Geology. Professor Shaler: two hours a week; 



