June 9, 1905.] 



SCIENCE. 



893 



C. W. Gakfield, Grand Rapids: 'The Rural 

 School Museum.' 



L. H. Bailey, dean of Agricultural School, Cor- 

 nell University: 'Planning Courses for Rural 

 Schools.' 



Joseph A. Jeffery, Agricultural College: 

 ' Some Lessons Concerning Soils for the Common 

 Schools.' 



SECTIOK OF BOTA>-Y. 



Vice-President, J. B. Dandeno, Agricultural 

 College. 



F. C. Newcombe, Ann Arbor: ' Geotropic Re- 

 sponse of Stems and Roots at Various Angles of 

 Inclination.' 



J. B. Daxdeivo, Agricultural College : ' Color 

 Stimuli and Plant Functions.' 



J. B. Pollock, Ann Arbor : ' A Canker of the 

 Yellow Birch accompanied by Neetria.' 



F. A. LoEw, Agricultural College : ' A Study of 

 the Effect of Dilute Solutions of Hydrochloric Acid 

 upon the Radicles of Corn Seedlings.' 



Ellen B. Bach, Agricultural College : ' The 

 Toxic Action of Copper Sulphate upon Certain 

 Algse, in the Presence of Foreign Substances.' 



Walter G. Sackett, Agricultural College: 

 ' The Relation of Bacteria to Plant Food.' 



J. B. Pollock and C. H. KAtJFFMAisr, Ann 

 Arbor : ' Michigan Fungi Not Previously Listed 

 in the Reports of the Michigan Academy of 

 Science.' 



R. P. HiBBARD, Ann Arbor : ' Sexual Reproduc- 

 tion in a Red Alga (Calithamnion Baileyi) .' 



W. J. Beal, Agricultural College : ' Vitality of 

 Seeds after Twenty-five Years.' 



J. B. PoiJLOCK, Ann Arbor: ' Pol i/st ictus liirsutiis 

 as a Parasite on Mountain Ash, Maple and Car- 

 pinus.' 



J. B. Pollock, Ann Arbor: 'Note on Gam- 

 derma {Fomes) sessile, Murrill, Its Variation 

 from the Original Description and Possible Para- 

 sitism.' 



S. 0. Mast, Holland: 'A Device for Aerating 

 Aquaria.' 



E. N. Transeau, Alma : ' Climatic Centers and 

 Centers of Plant Distribution.' 



Frances Stearns, Adrian: 'A Study of Plants 

 in Ravines near Adrian.' 



Edith Pettee, Detroit : ' Plant Distribution in 

 a Small Bog.' 



Alfred Daohnowski, Ann Arbor : ' Ravines in 

 the Vicinity of Ann Arbor.' 



H. S. Reed, University of Missouri, Columbia, 

 ilo. : ' History of Ecological Work.' 



J. B. Pollock, Ann Arbor : ' A Species of 

 Hormodendriiin Parasitic on the Araucaria.' 



S. Alexander, Ann Arbor : ' A Southern Plant, 

 New to the Flora of Michigan, Found Growing at 

 Ann Arbor.' 



section of geology and geography. 

 Vice-President, M. S. W. Jefferson, Ypsilanti. 

 S. Alexander, Ann Arbor: 'A Remarkable 

 Floi-al Reversion Caused by Bud-Grafting.' 



E. L. IMoSELEY, Sandusky, 0. : ' Changes of 

 Level at the West End of Lake Erie.' 



Frank B. Taylor, Fort Wayne, 0. : ' Relation 

 of Lake Whittlesey to the Arkona Beaches.' 



Edward H. Ivraus, Ann Arbor: 'Occurrence 

 and Distribution of Celestite-bearing Rocks.' 



W. H. Sherzer, Ypsilanti : ' Glaciers of British 

 Columbia.' 



I. C. Russell, Ann Arbor: ' Drumlin Areas in 

 Northern Michigan.' 



Frank LE^•ERETT, Ann Arbor: ' Interglacial Lake 

 Clays of the Grand Traverse Regions.' 



M. S. W. Jefferson, Ypsilanti : ' Beach Cusps.' 



Edward H. Kraus, Ann Arbor: 'Origin of the 

 Sulphur Deposits at Woolmith Quarry, Monroe 

 Co., Mich.' 



section of sanitary science. 

 Vice-President, T. B. Cooley, Ann Arbor. 

 V. C. Vaughan, Ann Arbor : ' The War Against 

 Tuberculosis.' 



F. G. NovY, Ann Arbor : ' Bird Hematozoa.' 

 Henry B. Baker, Lansing: 'Am I My Brother's 



Keeper ? ' 



Cressy L. Wilbur, Lansing: 'The Scientific 

 Necessity of Complete Registration of Vital Sta- 

 tistics.' 



W. G. Sackett, Agricultural College : ' The Re- 

 lation of Bacteria to Plant Food.' 



S. F. Edwards, Ann Arbor : ' Tryptophan 

 iledia.' 



L. T. Clark, Agricultural College: 'Technical 

 Cultural Manipulation of Rliizobium.' 



H. N. ToRREY, Ann Arbor : ' Staining by the 

 Romanowsky ^Method.' 



Bronson Barlow, Guelph, Ont. : ' The Steam 

 Still.' 



W. R. Wright, Agricultural College : ' The Re- 

 lation of the Bacterial Content to the Ripening 

 of Michigan Cheese.' 



T. B. CooLEY, Ann Arbor: ' Some Bacterial 

 Hemolysins.' 



V. C. Vaughan, Jr., Ann Arbor : ' The Action 

 of the Intra-Cellular Poison of the Colon Bacillus.' 



