SCIENCE 



[N. S. Vol. XLIX. No. 1256 



a discussion by Professor H. L. Eietz, University 

 of Iowa. "A report on the ensign school" was 

 made by Professor E. J. Moultou and E. E. Wil- 

 son, of Northwestern University. 



After a session of the American Mathematical 

 Society, to which the members of the association 

 were invited to hear the retiring address of Presi- 

 dent L. E. Dickson on "Mathematics in war per- 

 spective," there was a joint session of the two or- 

 ganizations at which the following papers were 

 read: 

 Some mathematical features of iallistics: Captain 



A. A. Bennett, Aberdeen Proving Ground. 

 How the map problem was mei in the war: Peo- 



FESSOB KuET Laves, University of Chicago. 

 Notes concerning recent hooTcs on navigation: 



Alice Bache Gould, University of Chicago. 

 Statistics methods for preparation for loar depart- 

 ment service: Peofessor H. L. Eietz, University 



of Iowa. 

 Ordnance prohlems: Major "W. D. MacMillan, 



Ordnance Department, Washington, D. C. 

 Practical exterior ballistics: Lieutenant P. L. 



Alger, Aberdeen Proving Ground. 

 The effect of the earth's rotation and curvature 



on the path of a projectile: Peopessoe W. H. 



EoEVER, Aberdeen Proving Ground. 

 On low velocity high angle fire: Professor H. F. 



Blichpeldt, Aberdeen Proving Ground. 



There was a joint dinner of the two organiza- 

 tions on Friday evening. The annual business 

 meeting was held Friday noon, and the following 

 officers were elected: 



President — H. E. Slaught. 



Vice-presidents — E. G. D. Eichaedson, H. L. 

 Eietz. 



Members of the Executive Council for three 

 years — ^L. P. Eisenhaet, B. F. Finkel, E. V. 

 Huntington, E. H. Mooee. 



The report of the secretary-treasurer showed 

 that eight members had died during the year, 61 

 individual and 4 institutional members had been 

 added, 49 individual and 4 institutional members 

 had withdrawn, the association thus numbering 

 1,060 individual and 84 institutional members. 

 One hundred and ten members are known to the 

 secretary-treasurer as having been enrolled in na- 

 tional service, including a small number in Y. M. 

 C. A. and other non-combatant branches. 



It was announced that the council had ap- 

 pointed E. C. Archibald, of Brown University, as 

 editor-in-chief of the official journal, the American 

 Mathematical Monthly, in place of E. D. Car- 

 michael, resigned ; and that twenty persons and one 



institution had been elected to membership at this 

 meeting. 



Tlie financial statement showed a balance for 

 December 1, 1917, of $3,485.47, receipts on 1918 

 business of $4,566.21, expenditures amounting to 

 $4,539.84, and a consequent balance on 1919 busi- 

 ness of $3,511.84, which with $216.27 already re- 

 ceived on 1919 business gives a balance under 

 date of December 2, 1918, of $3,728.11. This will 

 be reduced to approximately $1,700 by bills payable 

 on 1918 business. W. D. Caiens, 



Secretary-Treasurer 



AMERICAN SOCIETY OF ZOOLOGISTS 



sixteenth annual meeting 



The proceedings of the sixteenth annual meet- 

 ing of the American Society, of Zoologists are pub- 

 lished in full m the Anatomical 'Record for Jan- 

 uary, 1919, together with abstracts of the papers 

 presented. 



The following were elected to membership in the 

 society: Arthur Challen Baker, Bureau of Ento- 

 mology, Washington, D. C; Samuel Eandall Det- 

 vriler, Yale Medical School, New Haven, Conn.; 

 Harrison Eandall Hunt, West Virginia Univer- 

 sity, Morgantown, W. Va.; Edwin Booth Powers, 

 Colorado College, Colorado Springs, Colo.; William 

 Hay Talliaferro, Chemical Welfare Service, New 

 Haven, Conn.; Elmer Eoberts, University of Illi- 

 nois, Urbana, 111. 



C. M. Child, Chicago, was elected president; H. 

 H. Wilder, Northampton, Mass., vice-president; W. 

 C. Allee, Lake Forest, 111., secretary-treasurer, and 

 George Lefevre, Columbia, Mo., member of execu- 

 tive committee. 



The following papers were presented: 



Parasitology 

 On the transmission of two fowl tapeworms: 



James E. Ackeet, Kansas State Agricultural 



College. 

 Recent discoveries concerning the life history of 



Asoaris lumbricoides : G. H. Eansom and W. D. 



Fostee, Bureau of Animal Industry, Washing- 

 ton, D. C. 

 The true homology of the cuticula and subcuticula 



of trematodes and cestodes: H. S. Pratt, Hav- 



erford College. 



Comparative Anatomy 

 The metamorphosis of two species of cyclops: Cy- 

 clops signatus (C. albidus Jurine) and Cyclops 

 americanus Marsh: Esther F. Byrnes. 



