1887.] 373 [Annual Meeting. 



Meetings. 



At the usual sixteen general meetings the average attendance 

 has been twenty-seven, the largest seventy-six and the smallest 

 seven. The regular attendance has been about the same as dur- 

 ing the last five years. It seems to me that the interest and value 

 of the meetings would be enhanced by holding only one instead 

 of two monthly meetings, for it is now very difficult to provide 

 communications. 



Twenty-eight communications have been made during the year. 



Library. 



The additions to the library number 2268, as follows : 





8vo. 



4to. 



Fol. 



Total. 



Volumes, 



212 



62 



3 



277 



Parts, 



1,324 



255 



42 



1,621 



Pamphlets, 



326 



37 



4 



367 



Maps, 







3 



3 



2,268 



A large number of works from the library of the late Dr. Samuel 

 Cabot have been presented by his heirs. The Secretary has also 

 given a number of books. 



We have subscribed to the Archives Italiennes de Biologie, 

 Archives Slaves de Biologie, the Zoologische Jahrbucher, and the 

 Monographs of the Flora and Fauna of the Gulf of Naples ; and 

 have arranged for several new exchanges. 



Nine hundred and twenty-nine books were borrowed from the 

 library by ninety-four persons. 



One hundred and seventy-five books have been bound. 



Publications. 



Three memoirs have been issued : The life-history of the Hy- 

 dro-medusae, by Dr. W. K. Brooks, with four plates ; The sup- 

 posed Myriapodan genus Trichiulus, the oldest-known insect 

 larva, Mormolucoides articulatus, from the Connecticut river rocks, 



