13 



Mr. C. B. Riker read a paper entitled " Experiences dur- 

 ing Collecting Trips on the Amazon River." With San- 

 tarem as a base, he made excursions thence into the virgin 

 forests of the surrounding country. He found little true 

 bird-music, but the birds fell naturally into the following 

 surprising classes : " screechers," 'whistlers," " grunters," 

 and " chirpers." 



Mr. F. M. Chapman reported that a Hermit Thrush 

 (Turdus aonalascJikce pallasii) and a Towhee (Pipilo ery- 

 tJirophthalmus) had thus far spent the winter in Central 

 Park, and that a Baltimore Oriole {Icterus galbula) had 

 been seen several times recently about the American Mu- 

 seum building. 



Mr. C. C. Young said that a Bonaparte's Gull (Larus 

 Philadelphia) had been captured at Rockaway Beach in 

 January of this year. 



February 13, 1894. — Public lecture in the lecture hall of 

 the American Museum of Natural History by Bashford 

 Dean, Ph. D., on "Oyster Culture in Europe," with stere- 

 opticon illustrations. 



February 27, 1894. — Mr. E. T. Adney in the chair. Eight 

 members and three visitors present. 



The paper presented at this meeting was by J. A. Allen, 

 Ph. D , entitled '' Recent Progress in the Study of North 

 American Mammalogy." In his absence, on account of ill- 

 ness, it was read by the Secretary. [Printed in full in this 

 Abstract.] 



MarcJi 6, 1894. — Public lecture in the lecture hall of the 

 American Museum of Natural History on " Mammals of 

 the Ancient Lake Basins of North America." The lecture 

 was given by J, L. Wortman, M. D., in place of Professor 

 H. F.Osborn, who was unexpectedly prevented from giving 

 the lecture, as had been originally arranged. The lecture 

 was abundantly illustrated with maps, charts, and stere- 

 opticon views. 



March 27, 1894.— Annual Meeting. The President in 

 the chair. Ten members and seven visitors present. 



