790 



SCIENCE. 



[N. S. Vol. XIX. No. 490. 



At the final business meeting on Saturday 

 morning the following officers were elected for 

 the ensuing year: 



President — Dr. A. C. Lane, State Geologist, 

 Lansing. 



Vice-Presidents — Section of Agriculture, Pro- 

 fessor W. J. Beal, Agricultural College; Section 

 of Botany, Professor J. B. Dandeno, Agricultural 

 College; Section of Geography and Geology, Pro- 

 fessor M. S. W. Jefferson, State Normal College; 

 Section of Sanitary Science, Dr. T. B. Cooley, 

 director of the Pasteur Institute, Ann Arbor; 

 Section of Science Teaching, Professor W. H. 

 Sherzer, State Normal College; Section of Zool- 

 ogy, Dr. Raymond Pearl, University of Michigan. 



Secretary and Treasurer — Professor C. E. Mar- 

 shal], Agricultural College. 



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

 igan. 



At this meeting the academy voted to com- 

 mence the publication of a bulletin, in addi- 

 tion to the annual reports now being issued. 

 The bulletin will appear three times during 

 the year, and will be in charge of an editorial 

 committee consisting of the president, the sec- 

 retary and Professor H. L. Clark, of Olivet. 

 The principal object of this bulletin will be 

 to disseminate among the people of the state 

 who are interested in science, and especially 

 among the teachers of science in the secondary 

 schools, more information regarding the work 

 the Academy of Science is doing than they 

 now get from the existing publication. 



Eaymond Peael. 



the iowa academy of sciences. 

 The eighteenth annual meeting of the Iowa 

 academy was held in the physical lecture room 

 of the State University of Iowa, Iowa City, 

 April 14 and 15. The following papers were 

 presented : 



Bruce Fink : President's address, ' Two Cen- 

 turies of American Lichenology.' 



Gilbert L. Houser: 'The Animal Cell in the 

 Light of Recent Work.' 



W. S. Hendrixson : ' The Action of Chloric 

 Acid on Metals.' 



Gershom H. Hill: ' Tlie Importance of Vital 

 Statistics in the Study of Social Science.' 



T. E. Savage : ' A Buried Peat Bed and Asso- 

 ciated Deposits in Dodge Township, Union County.' 



L. H. Pammel : ' Some Notes on Iowa Flora.' 



Nicholas Knight : ' Some Features in the 

 Analysis of Dolomite Rock.' 



Nicholas Knight : ' The Softening of Hard 

 Water.' 



L. H. Pammel, Edna King and R. E. Bu- 

 chanan : ' Some Bacteriological Examinations of 

 Iowa Waters.' 



Launcelot W. Andrews : ' The Determination 

 of Chlorides by Means of Silver Chromate.' 



Arthur W. Martin : ' A Chemical Study of 

 Rhus glabra.' 



J. E. GuTHEiE : " The ' Furcula ' in the Col- 

 lembola." 



R. I. Cratty : ' The Flora of Emmet County, 

 Iowa.' 



W. M. Barr : ' Action of Sodium Thiosulphate 

 on Silver Salts.' 



John J. Lambert : ' Regeneration in the Cray- 

 fish.' 



C. F. Lorenz : ' Single Lantern Stereoscopic 

 Projection in Color.' 



G. E. Finch : ' Notes on the Position of Nileus 

 vigilans in Strata at Elgin, Iowa.' 



R. E. Buchanan : ' The Development of the 

 Plum, Prunus americana.' 



B. Shimek : ' Additions to the Iowa Flora.' 



H. W. NoRRiS : ' The so-called Dorsotrachealia 

 Branch of the Seventh Cranial Nerve in Am- 

 phiuina.' 



H. W. NoERis : ' The Vagus and Anterior Spinal 

 Nerves in Amphiuma.' 



KLaty a. Miller : " The Lichen Flora of ' The 

 Ledges,' Boone County, Iowa.' 



W. S. Hendrixson : ' A Method of Determining 

 Chloric Acid.' 



Harriet -M. Clearman : ' A Geological Situa- 

 tion in the Lava Flow, with Reference to the 

 Vegetation.' 



John C. Frazee : ' Synthesis of Ethyl Alcohol 

 from Acetylene.' 



Edwin Morrison : ' Old Experiments with New 

 Apjjaratus.' 



H. A. Mueller : ' A Preliminary List of the 

 Flowering Plants of Madison County.' 



Charles R. Keyes : ' Remarkable Occurrence 

 of Aurichalcite.' 



Charles R. Keyes : 'Certain Basin Features 

 of the High Plateau Region of Southwestern 

 United States.' 



Charles R. Keyes : ' Note on the Carboniferous 

 Faunas of the Mississippi Valley in the Rocky 

 Mountain Region.' 



L. Begeman : ' A Convenient Voltaic Cell.' 



F. Bonnet : ' A New Method of Determining 

 Compressibility of Liquids and Solids.' 



