Mat 20, 1904.] 



SCIENCE. 



789 



W. J. Beal, Agricultural College : ' Extension 

 Work in Agriculture.' 



.SECTION OP ZOOLOGY. 



Raymojstd Peael and Miss Mabt H. Buek, Ann 

 Arbor : ' A Statistical Study of Conjugation in 

 Paramoecium.' 



Miss Feances J. Dunbae, Ann Arbor : ' Methods 

 Used in Cultivating Pure Strains of Paramoecium.' 



Miss Jean Dawson, Ann Arbor : ' On the Oc- 

 currence of a Gill in PlanorMs.' 



Bryant Waikee, Detroit : ' Variation in the 

 Forms of Succinea ovalis.' 



A. G. RuTHVEN, Ann Arbor : ' Notes on the Mol- 

 lusks, Reptiles and Amphibians of Porcupine 

 Mountains, Mich.' 



J. Playfaie McMureich, Ann Arbor : ' A New 

 Type of Cerianthid and Its Significance.' (By 

 title.) 



Ellis Michael, Ann Arbor : ' Fish Fauna of 

 Michigan.' 



H. L. Clark, Olivet : ' A Michigan Biological 

 Survey.' 



J. E. Dueeden, Ann Arbor: 'The Antiquity of 

 the Zoanthid Actinians.' 



H. L. Claek, Olivet : * Snake Notes,' illustrated 

 with specimens. 



H. L. Clakk, Olivet: 'The Variability of 

 Snakes.' 



C. F. CuETis Riley, Ann Arbor : ' Some Re- 

 actions of the Agrionidse Larvse.' 



S. J. Holmes, Ann Arbor : ' Some Observations 

 on Phototaxis.' 



J. E. Dueeden, Ann Arbor : ' An Exhibit Show- 

 ing Commensalism of Crab and Actinian.' 



section op geogeaphy and geology. 



Feank Leveeett, Ann Arbor : ' Bed Rock 

 Topography of the Southern Peninsula of Mich- 

 igan.' 



A. C. Lane, Lansing : ' The Theory of Copper 

 Deposition.' 



A. C. Lane, Lansing: 'The Development of the 

 Igneous Magma.' 



A. C. Lane, Lansing : ' Artesian Wells Along 

 the North Shore of Lake Michigan.' 



I. C. Russell, Ann Arbor : ' The Glaciers of the 

 Three Sister Peaks, Oregon,' illustrated. 



Feank Levekett, Ann Arbor : ' The Glacial 

 Geology of the Ann Arbor Quadrangle.' (By 

 title.) 



Isaiah Bowman, Ypsilanti : ' A Case of Steam 

 Capture at Rawsonville, Michigan.' 



H. W. Beegee : ' Gravel Deposits on Marl at 

 the Shore of Bass Lake, Livingston County, Mich- 

 igan.' 



I. C. Russell, Ann Arbor : ' Lava Flows of the 

 Deschutes Valley, Oregon,' illustrated. (By title.) 



M. S. W. Jeffeeson, Ypsilanti : ' The Valley of 

 the Yuma River, Cuba,' illustrated. 



M. S. W. Jeffeeson, Ypsilanti: 'Wind Effects.' 



F. W. KJELSEY, Ann Arbor : ' Vesuvius Before 

 the Eruption of '79.' 



SECTION OP sanitary SCIENCE. 



T. B. CooLEY: 'Report of the Pasteur Institute 

 for the Year Ending April 1, 1904.' 



MoETiMEE WiLLSON : ' Personal Hygiene for 

 Life's Afternoon.' 



Guy S. Kiefee : ' Some Problems in Sanitary 

 Science.' 



Miss Caeeie A. Lypoed : ' Domestic Science in 

 Its Relation to Sanitary Science.' 



Miss Jennette Carpenter: 'The Object of 

 Cookery in Schools.' 



Floyd W. Robison : ' Iron and Fiber in Their 

 Relation to the Food of Man.' 



V. C. Vaughan : ' The Result of Sixteen Years 

 of Work in the Bacteriological Examination of 

 Drinking Water.' 



Ralston Williams : ' Typhoid Germs in Sew- 

 age.' 



T. F. Maeston : ' What Pure Milk Production 

 Means to the Producer.' (By title.) 



Ira O. Johnson : ' The Signifi"cance and Produc- 

 tion of Walker-Gordon Milk.' 



Chaeles E. Marshall: 'Associative Action of 

 Bacteria in the Souring of Milk.' 



H. B. Baker : ' A Problem in Terrestrial Phys- 

 ics — What Causes the Earth's Rotation.' 



T. B. CooLET: ' Gun Shot Wounds and Tetanus.' 



D. J. Levy: 'Filtration of Enzymes.' 



Feed Munson and W. R. Spencee: 'A Pre- 

 liminary Report on the Presence of Toxin in 

 Liver Cells.' 



Donald McIntyee : ' The Intercellular Toxin of 

 B. pyocyaneus.' 



M. W. Clift: 'The Chemical Tests for Mor- 

 phine in the Presence of Putrefactive Substances.' 



D. J. Levy: 'An Actinomyces Isolated from 

 Man.' 



L. M. Gelston : ' Filtration of Virus of Rabies 

 Through Paper.' 



Ward J. McNeal : ' An linproved Medium for 

 Cultivating Trypanosoma Brucei.' 



F. G. NovY and W. J. McNeal : ' Cultivation 

 of Trypanosoma Evansi.' 



F. G. NovY and W. J. McNeal : ' Filtration and 

 Agglutination of Trypanosomes.' 



H. R. Teerey : ' A New Phosphorescing Organ- 



