DIRECTIONS TO THE BINDER. 
Greographical Map of Kansas and Nebraska, to face page 156. 
Plate 1, to face page 178. 
Plate 2, to face page 180. 
Biological Department, — the three plates to face page 4. 
Map of Haddonfield, N. J., to face page 213. 
Pages 117 and 118, in the April and May Nos., to be cancelled, and pagefs 
117 and 118 at the close of the June No., substituted for them. 
Pages xi. and xii. of Donations to the Library are at the close of Dr. Meig's 
circular. Donations to the Museum will be bound immediately after the cor- 
respondence, followed by Donations to Library, and the Proceedings of the 
Biological Department. 
Errata to Notes on American Land Shells, No. 4, 
Page 198, No. 41, Dr. Gould suggests for B. vesicalis, the name sufflatus. 
Page 198, after No. 48, add 48* T. gracilenta. 
Page 200, after No. 84, read 84a H. B e r 1 a nd c r 1 a n a, Mor., Deslu in 
Lam., Chemn., Pf. in vol. iii, nec in vol. i, Rve., Binn. 
JI. pachyloma, Mke., Pf. ? 
H. virginalis, Pf. ? Ghemn. ? 
Page 200, after No. 86, read 86^ H. c a d n o a, Pf. ? 
Page 201, line 8, add H. dissidens, Desh. 
Page 201, line 31, add H. dissidens, Desh.,=H. concava. 
