iv CONTENTS. 
Page 
NUMBER CX. 
X. Remarks upon the Formation of Starch. By M. Cuartes Mutter. 73 
XI. Notice of Spiders captured by Professor Potter in Canada, with 
descriptions of such Species as appear to be new to science. By Joun 
MUR OR WALL Uo Uathe uci, vencocevacevdss cccds sovatanes ioopbeaneren tale ica 
XII. On the British Cetacea. By J. E. Gray, Esq., F.R.S. ...... 82 
XIII. Hore Zoologice. By Sir Wm. Jarpine, Bart., F.R.S.E. & 
BAe vosscestcnnevessnnndcsstacaceassscbese os cnsikehsnn bes bin oho nean iy mia—n—nn 85 
XIV. Notes on the Giconomy of the Pausside. By Capt. W. J. E. 
BOYES os cccsyancosesuvoentereversseccccnasseccctentsuceesssousepesens ts seeeal cesses 88 
XV. Notice of an American Bittern, Bataurus lentiginosus, Mont. 
(sp.), obtained in Ireland. By Witt1am Tuompson, Pres. Nat. Hist. 
and Phil. Soe. Delfast.....ii..0:.cdenaisnseonjviegss4oievasacesda>canpnanelalan os Ol 
XVI. Researches on the Primary Modifications of Organic Matter, 
and on the Formation of Cells. By M. Coste .......ccceccecceseeeveeces 94 
XVII. Notes on Phrynosoma Harlani, Wieg. Hg Dr. Parrick 
WRILY cin cccscexerscecececnccqccdscececencadeuduacdedh ascent hscucildia enn 99 
XVIII. On the Relations of the genus Noggerathia to Living Plants. 
By. M. ADOLPHE BRONGNIART cscccssosccsecncssecscstcescncsescocssoosecens -- 100 
XIX. Characters of some undescribed species of Chalcidites. By 
Franca W aunen,; Eeq., FoLiSer ick ccccdeededtaetnsies bi gakbce mcm Sitexk 108 
XX. Botanical Notices from Spain. By Moritz WiLLKom™ ...... 115 
New Books :—Recherches sur ]'Anatomie, la Physiologie et l’Embryo- 
génie des Bryozoaires, par M. Van Beneden, Professeur a |’Univer- 
aité Catholique de Louvain...cos.ccccccscccecccncscssoavecceesuoe ten se¥inn 00 
Proceedings of the Botanical Society of Edinburgh; Zoological So- 
CUBE sc csnes ss-nne sin tdnahne tankhe aphaxpatshmeshunnansahat he absiai al Gain 123—134 
Corixa striata, Curtis; On the Habits of Dispotea—Cup and Saucer 
Limpets; On the Embryology of Act@on, by M. Vogt; Hassall’s 
‘ British Freshwater Algze’; Meteorological Observations and 
Pate eek a ae as ee 135—144 
NUMBER CXI. 
XXI. On the Osteology and Dentition of some North American 
Mastodons. By Joun C. WARREN, M.D. ...ccesssceeeeerereseees ccvecesee. 140 
XXII. Notice of a Bottle-nosed Whale, Hyperoodon Buizkopf, 
Lacep., obtained in Belfast Bay in October 1845. By Wittiam 
Tuompson, President Nat. Hist. and Philosophical Society of Belfast. 
(With a Plate.) ...cscccecssseseneccesssseecseeeeeseeecacsseceesensneees esceceaen 150 
XXIII. Notes on the Natural Habitat of the Common Potato; and 
on its Introduction into Europe. By Georcr Orp, Esq., Philadelphia: 
Communicated by Sir W. Jardine, Bart. .......... enon cbagdds konsh Nkoaginlies 154 
