IV CONTENTS. 



PAGE 



XIII. — Symmetrical Cell Development ijst the Favosi 



TiD.E. By C. E. Beecher. Plates 14, 15, 215 



XIV. — New England Spiders of the Family Attid^. 



By J. H. Emerton. Plates 16-21, .-- 220 



XV. — A Provisional List of the Hepatic.e of the 

 Hawaiian Islands. By A. W. Evans. Plates 



22, 23, - - - - 253 



— XVI. — An Arrangement of the Genera of Hepatic^. 



By A. W. Evans, 262 



XVII. — On the Ferments contained in the Juice of the 

 Pineapple (Ananassa sativa). By R. H. Chit- 

 tenden, E. P. JosLiN and F. S. Meara, . 281 



^VIII. — The Nephrostomes of Rana. By O. C. Farring- 



TON. Plate 24, 309 



XIX. — Notes on the Fauna of the Island of Dominica, 

 British West Indies. By G. E. Verrill. Plates 

 25-27, .^ 315 



XX. — On a Collection of Land Moli.usca from the 

 Island of Dominica, West Indies. By H. A. 



PiLSBRY, 356 



XXI. — New England Spiders of the Family Thromsid^. 



By J. H. Emerton. Plates 28-32, 359 



0- XXIL — The Marine Nemerteans of New England and 

 Adjacent Waters. By A. E. Verrill. Plates 

 33-39, 382 



XXIII. — D1N0PHILID.E OF New England. By A. E. Ver- 

 rill. Plate 36, Figures 6, Qa, 457 



XXIV. — Marine Planarians of New England. By A. E. 



Verrill. Plates 40-44, 459 



