D. APPLETON & CO.'S PUBLICATIONS. 



MODERN SCIENCE SERIES. 



Edited by Sir John Lubbock, Bart., F. R. S. 



"THE CA USE OF AN ICE AGE. By Sir Robert 

 -» Ball, LL. D., F. R. S., Royal Astronomer of Ireland ; author 

 of " Star Land," " The Story of the Sun," etc. 

 " Sir Robert Ball's book is, as a matter of course, admirably written. Though but a 

 small one, it is a most important contribution to geology." — Loudon Saturday Review. 

 "A fascinating subject, cleverly related and almost colloquially discussed." — Phila- 

 delphia Public Ledge?: 



^pHE HORSE; A Study in Natural History. By 



-» William EL Flower, C. B., Director in the British Natural 



History Museum. With 27 Illustrations. 



" The author admits that there are 3,800 separate treatises on the horse already pub- 

 lished, but he thinks that he can add something to the amount of useful information 

 now before the public, and that something not heretofore written will be found in this 

 book. The volume gives a iarge amount of information, both scientific and practical, 

 on the noble animal of which it treats." — New York Commercial Advertiser. 



n^HE OAK : A Study in Botany. By H. Marshall 



*■ Ward, F. R. S. With 53 Illustrations. 

 "From the acorn to the timber which has figured so gloriously in English ships 

 and houses, the tree is fully described, and all its living and preserved beauties and 

 virtues, in nature and in construction, are recounted and pictured." — Brooklyn Eagle. 



ETHNOLOGY IN FO IK LORE. By George L. 



•L~" Gomme, F. S. A., President of the Folklore Society, etc. 



"The author puts forward no extravagant assumptions, and the method he points 

 out for the comparative study of folklore seems to promise a considerable extension of 

 knowledge as to prehistoric times." — Independent. 



HTHE LAWS AND PROPERTIES OF MAT- 



■L TER. By R. T. Glazebrook, F. R. S., Fellow of Trinity 



College, Cambridge. 



" It is astonishing how interesting such a took can be made when the author has a 



perfect mastery of his subject, as Mr. Glazebrook has. One knows nothing of the 



world in which he lives until he has obtained some insight of the properties of matter 



as explained in this excellent work." — Chicago Plerald. 



pHE FAUNA OF THE DEEP SEA. By Sydney 



J- J. Hickson, M. A., Fellow of Downing College, Cambridge. 



With 23 Illustrations. 



" That realm of mystery and wonders at the bottom of the great waters is gradually 



being mapped and explored and studied until its secrets seem no long'-r secrets. . . . 



This excellent book has a score of illustrations and a careful index to add to its value, 



and in every way is to be commended for its interest and its scientific merit." — Chicago 



Times. 



Each, i2mo, cloth, $1.00. 



New York : D. APPLETON & CO., 72 Fifth Avenue. 



