SCIENCE-ADVERTISEMENTS 



Marine Biological Laboratory 



Woods Hole, Mass. 



INVESTIGATION FaoiUties for raearoh in Zoolocy, 

 Embiyolox7» Phyriology and Bot- 

 Eatlr* Y*«r any. Seventy-eix private labora* 



tOllM, tlOO eaoh for not over thres 

 months. Thirty tables are avail- 

 able for b«ginnera in researoh who 

 desire to work under the direction 

 of members of the staff. The fee 

 for such a table is S50.00 



INSTRUCTION 



Courses of laboratory instmetion 

 «lth lectures are offered in Inverte- 

 July 3 to Augfust 13 brate Zoology, Ilmbryology, Physi- 

 jgig olocy and Morphology and Taxo- 



nomy of the Al^. Each course 

 requires the full time of the student. 

 Fee, S50. A lecture course on the 

 Philosophical Aspects of Biology 

 and Allied Sciences is also offered. 



SUPPLY tnlmals and plants, preserred, Uv- 



rwnKTtT^inci>.Tw •"«• *"'* *" embryonic stages. 



DEPARTMENT Preserved material of all Ijypea of 



A_ ii. 17 >> V animals and of Algae, Fungi, Liver- 



Ora> the Entiro Year ^o^si and Mosses furnished for 



(doBswork, or for the museum. 



' Living material furnished in season 



as ordered. Price lists of Zoologi<nl 



and Botanical material sent on sp- 



Slioation. State which is dedred. 

 'or price Hsta and all information 

 regarding material, oddrest 



GEO. M. OBAT. Ctnator; Woods Hole, Mass. 



Tfca aiuiaal announcement will be sen ton application to The 

 DInotw, Marine Biologioal Laboratory. Woods Hole, Mass. 



Just Published 



The Human Mechanism 



Revised Edition 



By THEODORE HOUGH, University of 

 Virginia, and WILLIAM T. SEDGWICK 

 Meissachusetts Institute of Technology, 



A thorough revision of the original book, on 

 physiology, hygiene, and sainitation. As a re- 

 sult of recent advances in knowledge portions 

 of certain chapters have been entirely re- 

 written, notably those dealing with the work 

 of orgeins eind cells, internal secretions, diges- 

 tion, nutrition, the nervous system, £ind the 

 communicable diseases. Two new chapters 

 have been added. Also many cheinges have 

 been made in the interest of greater sim- 

 plicity cind clearness of presentation. 



[572 pages, illustrated, $2.00 



Ginn and Company 



Boiton 

 New York 

 Chicaso 

 London 



Catalogue of the Hemiptera of 

 America North of Mexico 



Excepting the 

 Aphididae, Coccidae and Aleurodidae 



By Edward P. Van Duzee Cloth, $5.50 



A Method for the Bleasiirement of Self and Mutual 

 Inductances, by Fred. E. Pemot .05 



An Unusual Extension of the Distribution of the 

 Shipworm in San Francisco Bay, California, by 



Albert L. Barrows 20 



On the Orientation of Ei-ythropsis, by Charles A. 



Kofoid and Olive Swesy..-. 15 



Crithidia Eui-yophthalmi, sp. nOT. from the Hem- 



Ipteran Bug, JSwryophthalnitis Convivus, Stal, 



by Irene McCulloch 16 



The University of California issues publications in the following 

 series among others: Agricultural Sciences; American Archae- 

 ology and Ethnology; Botany; Economics; Entomology; Geog- 

 raphy ; Geology ; Mathematics ; Pathology ; Physiology ; Psy- 

 chology J Zoology ; Memoirs of the University of California ; 

 Bulletin and Publications of the Lick Observatory. 



Complete lists'of titles and pricfts will be sent on request. 



UNIVERSITY OF CALIFORNIA PRESS 



Berkeley, California 260 Madison Ave., New York 



Publications of 

 Carnegie Institution of Washington 



The publications of the Institution now number over 350 

 volumes, the sabjects including Anatomy, Archseology, Astron* 

 omy. Botany, Chemistry, Economics and Sociology, Embry- 

 ology, Experimental Evolution and Heredity, Engineering; 

 Folk-Lore, Geology, History, International Law, Literature, 

 Mathematics, Medicine, Nutrition, Philology, Physics, Zool- 

 ogy Classified and descriptive lists will be sent postpaid 

 on application. 



Paleontology 



55. Case, E. C. A Revision of the Pelyoosauria of North 



America. Quarto, 176 pp., 35 pis., 73 figs $3.00 



145. Case, E. tC. A Revision of the Cotylosauria of 



North America. Quarto, 122 pp., 14 pis., 62 figs... 3.00 



146. Case, E. C. Revision of the Amphibia and Pisces 



of the Permian of North America. Quarto, 184 

 pp., 32 pis., 66 figs 4.00 



181. Case, E. C, S. W. Wiiuston, and M. G. Mehl. 

 Permo-Carboniferous Vertebrates from New Mex- 

 ico. Quarto, 86 pp., 1 plate, 51 figs 2.00 



207. Case, E. C. The Permo-Carboniferous Red Beds 

 of North America and their Vertebrate Fauna. 

 Quarto, 176 pp., 24 pis., 50 figs 4.00 



75. Hat, O. P. The Fossil Turtles of North America. 



Quarto, 572 pp., 113 pis., 704 figs 9.00 



34. WiELAND, G, R. American Fossil Cycads. Quarto. 



Vol. I. Structure. 304 pp., 51 pis., 141 figs 6.25 



Vol. II. Taxonomy. 284 pp., 58 pla., 97 figs 6.25 



238. MooDiB, R. L. The Coal Measures Amphibia of 



North America. Quarto, 232 pp., 26 pis., 43 figs. 5.50 



All commuoications should be addressed to 



CARNEGIE INSTITUTION OF WASHINGTON 

 WASHINGTON, D. C. 



