10 BOOKS PUBLISHED BY MR. YAN VOORST. 



[I^he Ground beneath us ; its Geological Phases and Changes. 

 Three Li'ctiu'es on the Creology of Clai^liam and the neighbour- 

 hood of London generally. By JOSEPH PRESTWICH, F.R.S., 

 E.G-.S., &c. 8vo, '^is. (Jcl sewed. 



Q-eological Inquiry respecting the Water-bearing Strata 



of the Country around Jjondon, ^vilh reference especially to the 

 Water Supply of the Metropolis, and including some Remarks 

 on Sprhigs. ' By JOSEPH PRESTWICH, E.G.S., &c. 8vo, 

 ^^dtli a Map and Woodcuts, 8«. 6cl. 



]y[anual of the Mineralogy of Great Britain and Ireland. 



T By ROBERT PHILIPS GREG, F.G.S., and WILLIAM G. 



LETTSOM. 8yo, with numerous Woodcuts, 15s. 



JJistory of British Fossil Mammals and Birds. By Pro- 

 fessor OWEN. Tills Yolume is designed as a companion to that 

 by Professor Bell on the (Recent Mammalia) ' British Quadru- 

 peds and Cetacea.' 8vo, with 237 Illustrations, i-'l Us. (Jd., or 

 large paper (royal Svo), £3 3s. 



Description of the Skeleton of an Extinct Gigantic Sloth 



(Slylodon robustus). With Observations on the Osteology, 

 Na tm'al Affinities, and probable Habits of the Megatherioid Qua- 

 drupeds in general. By RICHARD OWEN, E.R.S., &c. 4to, 

 In £1 12s. Qd. 



ITemoirs of Hugh E. Strickland, M.A., Deputy Reader of 



Geology in the University of Oxford. By SIR WILLIAM 



JARDINE, Bart. ; with a selection from his Printed and other 



Bi Scientific Papers. Royal 8vo, Illustrated by Maps, Geological 



Sections, Plates and Woodcuts, 36s. 



Qmphalos. An Attempt to Untie the Geological Knot. By P. H. 

 GOSSE, F.R.S. The law of Proclu-onism in organic creation. 

 Post 8vo, with 56 Illustrations on wood, 10s. 6d. 



This 



GENEE^AL I^ATUEAL HIBTOEY^ &c. 



fj)he Honey-Bee ; its Natural History, Habits, Anatomy, and Mi- 

 3 V( croscoincal Beauties. With Eight Tinted Illustrative Plates. By 



JAMES SAMUELSON, assisted by Dr. J. BRAXTON HICKS. 

 (Forming a Second Part of Humble Creatm'cs.) Post Svo, 6s. 



JTumble Creatures (Parti.): the Earthworm and the 



'irn' Common liouselly. In Eight Letters. By JAMES SAMUEL- 



' '^Tj •'^ON, assisted by' J. B. HICKS, M.D. Bond., F.L.S. With Mi- 



croscopic Illustrations by the Authors. Second Edition, post Svo, 

 3s. 6c/. 



JOmr VAN VOORST, 1 PATERNOSTER ROW 



