4-74 
INDEX. 
Semanoptems, new species of, 142. 
Serpent tribe, on the extensibility of 
membrane and muscle in the, 394. 
Sertularia, on the development of, 136. 
Shells, on Mr. Cuming’s collection 
of, 149 ; descriptions of new species 
of fossil, 347 . 
Shepherd, Prof. F., on the habits of 
Notonecta glauca, 158. 
Sinde, notes on the botany of, 420. 
Smith, J. T., on the Ventriculidae of 
the chalk, 36, 203, 279, 352; on 
some curious phaenomena in the 
night-blooming Cereus, 77- 
Sparganium ramosum, on the struc- 
ture and growth of, 181. 
Spiders, on the reproduction of lost 
parts in, 173. 
Spiridens, new species of, 325. 
Sponges, freshwater, on the structure 
and animality of the, 303. 
Stems, on the anomalous forms of 
dicotyledonous, 127. 
Stephens, S., on a new method of re- 
laxing insects, 144. 
Teschemacher, J. E., on the fossil 
vegetation of anthracite coal, 157. 
Thompson, W., on the fauna of Ire- 
land, 62 ; on the occurrence of the 
Bonapartian gull in Europe, 192. 
Thwaites, G. H, K., on the Diato- 
macese, with descriptions of new 
genera and species, 161 ; on the 
habits of Tinea granella, 234 ; on 
the early stages of the development 
of Lemanea fluviatilis, 460. 
Tinea granella, on the habits of, 234. 
Treviranus, Prof., on the anomalous 
forms of dicotyledonous stems, 124. 
Tritonia, new species of, 191. 
Tropiphorus, on the British species 
of, 301 . 
Tubularia, on the development of, 
134. 
Utricularia, on some Indian species 
of, 381, 
Ventriculidae of the chalk, on the 
classification of the, 36, 203, 279, 
352. 
Ventriculites, observations on the, 
435. 
Vicary, Capt. N., on the botany of 
Sinde, 420. 
Walker’s, F., descriptions of Aphides, 
249, 328, 443; on the migrations 
of Aphides, 372. 
Walton, J., on the genera of insects 
Pissodes, Hypera, &c., 295 ; on the 
genus Anthonomus, 416. 
Westwood, J. O., on the common 
flea, 316 ; on the potatoe disease, 
377 ; on some new species of Athy- 
reus, 386. 
White, A., on an apparently new sub- 
genus of Calandridse, 10/ ; on some 
new or little-known Crustacea, 221. 
Williamson, F., on Caladium distilla- 
torium, 188. 
Williamson, W. C., on the recent 
British species of the genus Lagena, 
1 ; on a new British species of Cam- 
pylodiscus, 321. 
Wollaston, T. V., on the insects of 
Madeii’a, 76. 
Wright, Dr., on the veneniferous 
glands of Geophilus longicorais, 
140. 
Xenocarcinus, characters of the genus, 
221 . 
Zebrida, characters of the new genus, 
222 . 
Zollinger, M., on Ratflesia Patma,154. 
Zoological Society, proceedings of 
the, 221. 
Zoophytes, hy droid, observations on 
the, 133. 
Zygophyllum, new species of, 427. 
END OF THE FIRST VOLUME. 
PRINTED BY RICHARD AND JOHN E. TAYLOR, 
RED LION COURT, FLEET STREET. 
