894 



SCIENCE. 



[X. S. Vol. XXI. Xo. 545. 



Sybil INFat Wdeeleb. Ann Arbor: 'The Extrac- 

 tion of the Intra-Cellular Poison of the Colon 

 Bacillus.' 



;Mabt Wetmoee, Agricultural College : • The 

 Germicidal Action of Fruit Juices upon Certain 

 Pathogenic and Xon-Pathogenie Bacteria." 



James C. CciiMiXG, Ann Arbor: "Disinfection 

 bv Means of Formalin and Potassium Permanga- 

 nate.' 



Chables E. Makshaix, Agricultural Coll^: 

 ' Bacterial Products in 3klilk and Their Relation 

 to Germ Growth.' 



SECTIOX OF SCIZ>XE TEACHIXG. 



Vic-e-President, W. H. Sherzer. Ypsilanti. 



I. B. Meteks, School of Education, Universitv 

 of Chicago : ' Elementary Field Work — ^Aims and 

 Methods.' Discussion opened by L. H. Bailey. 

 Cornell University. 



M. S. W. Jeffeesox. State Xormal College: 

 ' Aims and Methods of Physiographic Field Work 

 in Secondary Schools.' Discussion opened by R. 

 D. Calkins, Central Xormal School. 



C. E. Adams, University of ^Michigan: 'Aims 

 and Methods of Zoolc^cal Field Work in Sec- 

 ondary Schools.' Discussion opened by Miss Jessie 

 -Phelps, State Xormal College. 



H. C. CowLES. University of Chicago : ' Aims 

 and Methods of Botanical Field Work in Sec- 

 ondary Schools.' Illustrated with lantern. Dis- 

 cussion opened by E. L. Moseley, Sandusky High 

 School. Ohio. 



J. Habeas- Beetz. Albion CoUege : ' Field Work 

 in Botany for the Winter Season.' 



SECTIO" of zoology. 



Vice-President. Raymond Pearl, Ann Arbor. 



J. E. Di-EBDEN, Ann Arbor: Xatural History 

 Notes from the Hawaiian Islands — ' Role of 

 Mncus in Corals,' ' Commensalism of Crab and 

 Aetinian.' 



Ht-BEBT Lymax Clabk. Olivet College: 'The 

 Value of the Pedieellariae in the Taxonomy of Sea- 

 urchins.' 



L. Mi-BBACH. Detroit: 'The Static Function in 

 Some Crustacta." 



Miss Jeax Dawson. Ann Arbor: 'An Ecolog- 

 ical Study of Physa.' 



S. O. Mast, Hope College: 'Light Reactions of 

 Stentor." 



S. J. Holmes. Ann Arbor: 'The Reflex Theory 

 of Phototaxis.' 



C. C. Whittakeb, Olivet College: 'Variation 

 in the Blue Racer.' 



Miss S. A. Ayres, Ann Arbor : " The Xervous 

 System of Cctnopsammia.' 



Raymoxd Peabl and Fra>xes J. Duxbab, Ann 

 Arbor: 'Some Results of a Study of Variation in 

 Paramecium.' 



A. B. Cl-vwsox, Ann Arbor : • Some Results of 

 a Study of Correlation in the Crayfish.' 



J. E. Dlebdex. Ann Arbor: "Demonstration of 

 Hawaiian Corals.' 



The University Museum Esi)edition to Xorthem 

 Michigan — Chables C. Adams, Ann Arbor: "In- 

 troductory Remarks.' A. G. Ruthvex, Ann 

 Ar)x>r: "An Ecological Sur\-ey in the Porcupine 

 Mountains and Isle Royale.' Otto McCbeaby, 

 Ann Arbor: 'Ecological Distribution of the Birds 

 of the Porcupine Mountains." Bbyaxt Walkeb 

 and A. G. Ruthtex, Detroit and Ann Arbor: ' An- 

 notated List of the Molluscs of the Porcupine 

 Motm tains and Isle Royale.' X. A. Wood, M. M. 

 Peet and 0. McCbe.vby. Ann Arbor and Ypsilanti : 

 " Annotated List of the Birds of the Porcupine 

 Mountains." X. A. Wood, M. M. Peet and 0. Mc- 

 Cbeaby, Ann Arbor and Ypsilanti : ' Annotated 

 List of the Birds of Isle Royale.' 



Bbyaxt Walkeb, Detroit : ' The Distribution of 

 Polygyra in Michigan." 



Fbaxk X. Xotesteix, Alma College : ' The 

 Ophidia of Michigan.' 



MoEBis GiBBS, Olivet College: 'A Summary of 

 the Work Hitherto done on ilichigan Herpetology.' 



HrBEBT Lymax Clark. Olivet College : ' The 

 Distribution of the Blue Racer and Rattlesnake in 

 Michigan.' I With maps. ) 



MoRBis GiBBS. H. L. Clabk and FftAXK X. 

 Xotesteix. Olivet College and Alma College : ' A 

 Provisional List of the Amphibia and Reptilia of 

 Michigan.' 



The officers elected for the ensuing year are 

 as follows: 



President — W. B. Barrows, Agricultural Col- 

 lege. 



Vice-Presidents of Sections — Agriculture, Pro- 

 fessor W. .J. Beal, Agricultural College; botany, 

 Professor J. B. Dandeno, Agricultural College; 

 geography and geology, Mr. Frank Levereti, Ann 

 Arbor; sanitary science. Dr. V. C. Vaughan, Jr.. 

 University of Michigan; science teaching. Pro- 

 fessor E. X. Trans^^au. Alma College; zoology, 

 Dr. .T. E. Duerden, University of Michigan. 



Librarian — Dr. G. P. Burns, University of Mich- 

 igan. 



Secretary-Treasurer — Professor C. E. :Marshall, 

 Agriculttiral College. 



F. C. Xewcombe. 



