SCIENCE-ADVERTISEMENTS 



CORNELL UNIVERSITY 

 MEDICAL COLLEGE 



First Avenue and Twenty-eighth Street 

 NEW YORK CITY 



The first year of the course is also 

 offered at Ithaca, N. Y., subsequent 

 years at New York City only. 



For Information Address 

 THE SECRETARY 



Research Prize of $1,000 



The Ellen Richards Research Prize 

 is offered for award in the year I 923. 

 Theses by women based on indepen- 

 dent laboratory research are eligible 

 for competition and must reach 

 the Committee before February 25, 

 1923. 



For circulars of information and 

 application blank, apply to 



DR. LILIAN WELSH. 



Gourher College Baltimore, Maryland 



For further information apply to 

 the Secretary, Mrs. Samuel F. Clarke, 

 Williamstown, Mass, 



Northwestern University 



MEDICAL SCHOOL 



Situated in Chicago in close proximity to im- 

 portant Hospitals with an abundance of clinical 

 material. 



ADMISSION KEQUIREMENTS— Two years of Collese credil in- 

 cluding, u aatiefactory course in Physici, Cfaemistry. BiologT 

 or Zoology, aod Frencl. or German. 



COURSK OF STUDY— leading to the degree of Doctor of Medi- 

 cine — Four years in the Medical School and a fifth year 

 either as Interne in an approved hospital or devoted to re- 

 search in some branch of Medical Science. 



GRADUATE INSTRUCTION— in courses leading to the degree of 

 Master of Arts or Doctor of Philosophy. 



RESEARCH FOUNDATION— The James A. Patten Endowment 

 for Research affords unusual opportunities for advanced 

 •ludeuts of Medical Science to pursue special investigationa. 



RESEARCH FELLOWSHIPS- 

 1500 each are awarded 



Tuition fees of the first and second years, $190.00 a year. 

 The third and fourth years, $200.00 a year. 



For information address 



C. W. PATTERSON, Registrar 



2421 South Dearhorn Street, Chicago, Illinois 



r fellowships of the value of 

 ally to promote scholarly re- 



The Microscope 



By SIMON H. GAGE of ComeU Uniyersity 



13 th Edition, Published December, (920 



In this edition, special emphasis is put upon the Dark-FieUl 

 Microscope. POSTPAID 83.00. 



COMSTOCK PUBLISHING CO.. 



ecial emphasis is put upon the 

 POSTPAID 83.00. 



Ithaca, N. Yc- 



Marine Biological Laboratory 



WOODS HOLE, MASS. 



Biological Material 



i-f^ I. ZOOLOGY. Preserved mate- 



^t rial of all types of animals for class 

 work and for the museum. 



2. EMBRYOLOGY. Stages of 

 some invertebrates, fishes (includ- 

 ing Acanthias, Amia and Lepidos- 

 tus), Amphibia, reptiles and some 

 mammals. 



3. BOTANY. Preserved mate- 

 rial of Algae, Fungi, LiverwortSj 

 Mosses, Ferns and Seed Plants. 



4. MICROSCOPE SLIDES in Bacteriology, 

 Botany and Zoology. 



5. LIFE HISTORIES, Germination Studies, 

 and Natural History Groups. 



Catalogues furnished on application to 



GEORGE M. GRAY, Curator 



WOODS HOLE, MASSACHUSETTS 



