PROCEEDINGS. XXXIX 



Ering or the Ginkgo Tree in Washington,* stated that two 

 trees of Ginkgo biloba. L.. a male and a female, had flowered for 

 the first time in the Botanical Garden, and the artificial polliniza- 

 tion of the female tKee had been successfully effected. 



Dr. H. G. Beyer, U. S. N., read a paper on The Physiologi- 

 cal Effects of Cocaine. f 



Prof. C. V. Riley presented a paper entitled Notes on the 

 Periodical Cicada, % in which he described the two extensive 

 broods of this year, and discussed the specific value of the differ- 

 ent forms. 



Dr. Thomas Taylor made a communication on How to Dis- 

 tinguish between Animal and Vegetable Fats,§ giving an 

 account of his recent experiments on the subject. 



Eighty-Second Meeting, October 31, 1885. 



The President occupied the chair, and thirty members were 

 present. 



Col. Marshall McDonald made a communication entitled Fish 

 Culture a Necessity for the Maintenance of the Shad 

 Fishery, || illustrating his arguments by a comparison of the 

 statistics for 1880 and 1885. 



Mr. Wm. H. Dall read a paper on Deep-Sea Mollusks and 

 the Laws Illustrated fN their Development, exhibiting 

 specimens collected by the Coast Survey Steamer " Blake " and 

 the Fish Commission Steamer lt Albatross." 



Prof. Q. T. Mason exhibited a series of casts taken from the 



* 18S5. Ward, Lester F. The Ginkgo Tree. <Science, v, June 19, 

 PP- 495-497 . 10 figs. 



tiS85- Beyer, H. G. The Influence of Atropine, Cocaine, and Caffeine 

 on the Heart and Blood Vessels. <Am. Jour, of the Medical Sciences, 

 Phila., July, pp. 1-31, 2 pis. 



% 1S85. Riley. C. V. The Periodical Cicada. <Science, v, June 26, 

 PP- 518-521. 



§ Proc. Am. Assoc. Advancement of Science, 1885; Proc. Am. Soc. of 

 Microscopists, 1885; Ann. Rept. U. S. Dept. of Agriculture, 1885. 



|| 1S85. The Results of Shad Propagation on the Atlantic Coast. 

 <Science, vi, No. 145, suppl., pp. 433-434. (Abstract). Abstracts also 

 printed in the American Angler, Forest and Stream, and other papers. 



