SCIENCE-ADVERTISEMENTS 



Just Issued 



KOFOID and SWEZY 



Mitosis and fission in the active and encysted 

 phases of Giardia enterica (Grassi) of Man. 

 50 cents. 



Mitosis in Endamoeba dysenteriae in the bone 

 marrow in Arthritis deformans. 



Eiulamoeha dysenteriae in the lymph glands 

 of Man in Hodgkin's disease. 



In one cover, 25 cents. 



Mitosis in the encysted stages of Endamoeba 

 coli (Losch). (In press), 30 cents. 



University of California Press 



Berkeley, California 



PUBLICATIONS OF 

 CARNEGIE INSTITUTION OF WASHINGTON 



Contributions to American Economic History' 



2I5A. Johnson, E. R, T. W. Van Metre, G. G. 

 Huebner, and D. S. Hanchett, with an introduc- 

 tory note by H. W. Farnam. History of Do- 

 mestic and Foreign Commerce of the United 

 States. Octavo. Vol. I. xv+363 pages, maps i 

 to 5. Vol. H. ix+398 pages, maps 6 to 10. 

 The first edition having become exhausted, a 

 second edition has been issued, the two volumes 

 under one cover $3.00 



215B. Clark, Victor S. History of Manufactures 

 in the United States, 1607 to i860. Octavo, 

 xii+675 pages, 7 plates, and 7 text figures, $6.00 



215c. History of Transportation in the United 

 States before i860. Prepared under the direc- 

 tion of Balthasar Henry Meyer by Caroline E. 

 MacGill and a staff of Collaborators. Octavo, 

 x-\-6y8 pages, 5 plates $6.00 



RECENTLY ISSUED 



309. Smith, Henry Monmouth. Gaseous Ex- 

 change and Physiological Requirements for 

 Level and Grade Walking. Octavo, viii+310 

 pages, I plate. 42 figures $6.00 



320. Castle, W. E. Genetic Studies of Rabits and 

 Rats. Octavo, 55 pages, 2 plates, 7 figures, $1.00 



The publications of the Inslilution now number over 450 vol- 

 umes, the subjects including Anatomy, Archieology, Astronomy, 

 Botany, Chemistry, Climatology, Economics and Sociology, Em 

 bryology. Genetics, Engineering, Folk_Lore, Geology, History, In 

 ternational Law, Literature, Mathematics, Medicine, Nutrition, 

 Paleontology, Philology, Physics, Stereochemistry, Terrestrial Mag, 

 netism. Zoology. Classified and descriptive lists will be sent post' 

 pnid on applicadon. All communications should be addressed to 



CARNEGIE INSTITUTION OF WASHINGTON 



WASHINGTON. D. C. 



Research Prize of $1,000 



The Ellen Richards Research Prize 

 is offered for avyrard in the year 1923. 

 TTieses 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, 

 Goucher College, Baltimore, Maryland 



For further information apply to 

 the Secretary, Mrs. Samuel F. Clarke, 

 Williamstown, Mass. 



Publications of 

 The Philippine Bureau of Science 



Vegetation of Philippine Mountains. The rela- 

 tion between the environment and physical 

 types at different altitudes. By William H. 

 Brown. 434 pages, 41 plates, and 30 text 

 figures; postpaid $2.50, U. S. currency. 



Index to the Genera of Birds. By Richard u. 

 McGregor. 185 pages; postpaid ?1.00, U. S. 

 currency. 



Species Blancoanae. A critical revision of the 

 Philippine species of plants described by 

 Blanco and by Llanos. By E. D. Merrill. 424 

 pages; postpaid $2.25, U. S. currency. 



Philippine Water Supplies. By G. W. Heise and 

 A. S. Behrman. 218 pages, 19 plates; post- 

 paid $1.75, U. S. currency. 



An Interpretation of Rumphius's Herbarium 

 Amboinense. By E. D. Merrill. 596 pages, 2 

 maps; postpaid $3.00, U. S. currency. 



The Philippine Journal of Science, a monthly 

 (no longer issued in sections), per year $5.00, 

 U. S. currency. 

 A list of the publications of the Philippine 



Bureau of Science and a sample copy of the 



Philippine Journal of Science will be sent upon 



request. 



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should be sent to 



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Philippine Journal of Fcience 

 Bureau of Science MANILA, P. L 



