No. 33 probably embraces two species, one of which is M. 

 exih's, Hald. 



Nos. 34, 35, 36 are given on the authority of Prof. Haldeman, 

 through Dr. ShurtlefF, of Westfield, Mass. 



No. 38 seems to be only a variety of 37. No living specimens 

 of 38 have yet been detected. No. 39 has a more elevated spire 

 than either 37 or 38, and was found associated with dead shells 

 of 38 in the sediment of a small lake in the south part of Her- 

 kimer County. 



No. 47 needs confirmation. I may yet secure specimens this 

 season, so as to be able to send them. 



No. 64 occasionally presents a perfectly white shell; I have 

 found only one, however, in which the animal was alive. I have 

 also found an occasional specimen of 48 and 79 with a white shell. 



No. 48 appears to be the shell DeKay calls P. glabra. 



No. 58, H. albolahris, Say. DeKay appears to have named 

 the young of this H. rufa. 



No. 70. I have some doubts if this be not H. inornata, Say. 



No. 75 presents two varieties. Those growing on dry localities 

 are of a rufous brown, and have a very clean shell. Those grow- 

 ing on flat lands, near the river, ai'e coated with mud, which 

 seems to have the effect to bleach the shell somewhat. 



No. 82 may be only a variety of oralis. I observe the animals 

 are exposed fully to the direct rays of the sun, which may have 

 an influence in modifying the color, so as to cause the animals to 

 become wholly black, — No. 81 being usually mottled with irregu- 

 lar light and dark bands. 



Dr. Brewer called the Society's attention to the interesting 

 fact, that a nest of the Nashville Warbler ( Verinivora ruhri- 

 capilla) had been found in Lynn, in this State, by Mr. George 

 Wells, an observing and enthusiastic naturalist of that town. 

 This is a rare bird in this State, and, so far as is now known, its 

 nest and eggs have never been met with by any ornithologist. 

 It was included in Mr. Peabody's catalogue of the Birds of 

 Massachusetts on the strength of a single specimen obtained by 

 Dr. Samuel Cabot, .Jr. A year or two since, Mr. Charles S. 

 Paine, of East Randolph, Vermont, observed a pair of these 

 birds who evidently had their nest within a certain locality. 



