26 SCIENTIFIC CATALOGUE. 



The programme of the work has not been 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 the reader is acquainted 

 with mathematics. The authors 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 merely for show, but each one is really illus 

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

 sufficient guarantee both that 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 stiidy of the Physical 

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

 Norman Lockyer, while the editorship of Mr. Norman Lockyer, 

 with 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. 

 IDS. bd. 



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

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

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

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

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

 perfectly fulfil the purpose for which it is intended." Land 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. Js. 6d. 



Fourteen Discourses on the following subjects: (i) On the Advisable- 

 ness of Improving Natttral Knowledge: (2) Emancipation 

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

 it: (4) Scientific Education: (5) On the Educational Value oj 



