26 SCIENTIFIC CATALOGUE. 



The programme of the work has not teen confined to a simple 

 explanation of the facts : but an attempt has been made to grasp 

 their relative bearings, or, in other words, their laws, and that 

 too without taking for granted that tlie reader is acquainted 

 with mathematics. The author's aim has been to smooth the way 

 for those who desire to extend their studies, and likewise to present 

 to general readers a sufficiently exact and just idea of this branch of 

 science. The numerous coloured illustrations and woodcuts are not 

 brought into the text ma'ely for show, but each oiie is really illus- 

 trative of the subject. The name of the translator and editor is a 

 sufficient guarantee bothtJiat the work is of genuine scientific value 

 and that the translation is accurate and executed with intelligence. 

 " This book is a luxurious introduction to the study of the Physical 

 Sciences. M. Guillemin has found an excellent translator in Mrs. 

 Norman Lockyer, while the editorship ofMx. Norman Lockyer, 

 witfi his notes and additions, are guarantees not only of scientific 

 accuracy, but of the completeness and lateness of the information." 

 — Daily News. 



Hooker (Dr.)— the STUDENT'S FLORA OF THE 

 BRITISH ISLANDS. By J. D. Hooker, C.B., F.R.S., 

 M.D., D.C.L., Director of the Royal Gardens, Kew. Globe 8vo. 

 IOJ-. bd. 



The object of tliis "work is to supply students and field-botanists with a 

 fuller account of the Plants of the British Islands than tfie manuals 

 hitherto in use aim at giving. The Ordinal, Generic, and Specific 

 characters have been re-written, and are to a great extent ori-ginal, 

 and drawn from living or dried specimens, or both. ' ' Cannot fail to 

 perfectly fulfil the purpose for whic/i it is intended." — Laud and 

 Water. " Containing the fullest and most accurate manual of the 

 kind that has yet appeared." — Pall Mall Gazette. 



Huxley (Professor). — lay SERMONS, ADDRESSES, 

 AND REVIEWS. By T. H. Huxley, LL.D., F.R.S. New 

 and Cheaper Edition. Crown 8vo. 7^. 6rf. 



Fourteen Discourses on the following subjects: — (l) 07i- the Advisable- 

 ness of Improving Natural Knmnledge : — (2) Emancipation — 

 Black and White : — (3) A Liberal Education, and where to find 

 it: — (4). ScientificEdwation : — (5) On the Educational Value of 



