1883. 161 Trans. N. V. Ac. Sci. 



Ivlay 28, 1883. 



The President, Dr. J. S. Newberrv, in the Chair. 



Thirty persons present. 



The President exhibited specimens of coal plants, brought by 

 Mr. Hague, from the northeastern part of China. These speci- 

 mens were of Mesozoic age, like those of the Richmond basin. 

 There is, however, a large development in the northern part of 

 China of the true Carboniferous series, with anthracite, and includ- 

 ing the remains of plants of that formation. 



Prof D. S. Martin then read a paper by Mr. Geo. N. Lawrence, 

 entitled 



descriptions of new species of birds of the genera CHRYSOTIS, 



formicivora and spermophila 

 Chrysotis caniformis, nov. sp., from the Island of Aruba, W. I. 

 Formicivora grivigula, nov. sp., from British Guiana. 

 Spermophila parva, nov. sp., from Mexico. 

 Dr. Alexis A. Julien read a paper entitled, 



notes on the flora and fauna of the islands of CURA9AO, 

 BUEN AYRE, and ARUBA, W. \. 



This paper discussed in some detail the most charactei istic fea- 

 tures of the flora and fauna of these rarely visited islands, and 

 concluded with the following contribution, by 



Mr. Thomas Bland, entitled, 



NOTES ON THE TERRESTRIAL MOLLUSKS WHICH INHABIT THE 

 ISLANDS OF ARUBA, CURA9AO, AND BUEN AYRE. 



In 1882, my fiiend Dr. Alexis A. Julien, visited the islands above 

 named, and collected a number of land shells, which he lately sub- 

 mitted to me for examination. 



The following is a list of all the species known at this date to in- 

 habit those islands. 



It should be mentioned that the islands are at no great distance from 

 the mainland of Venezuela, and within the 100 fathom line of soundings. 



ARUBA. 



* Tudora megachetla, Pot. & Mich. 



* Bulimulus elongatus, Bolt. 



CURASAO. 



* Tudora tnegachcila, P. & M. 



* Tudora megachcila, var. } 



* Cistula Ravtni, Crosse. 



" * Succinea ,^/rrt/a, Gibbons. 



