REVIEWS. 61 



ments, each square containing several representatives of the same 

 species shown in different aspects. 



The names are plainly printed in white letters under each 

 species. The following genera are represented : — 

 Cornuspira, i sp Biloculina, 2 sp. Trochammina, i sp. 



Miliolina, 6 sp. Haplophragmium, 2 sp. Lagena, 14 sp. 



Nodosaria, 2 sp. Dentalina, i sp. Cristellaria, i sp. 



Polymorphina, 2 sp. Globigerina, i sp. Textularia, i sp. 



Verneuilina, i sp. Bulimina, 4 sp. Bolivina, 2 sp. 



Discorbina, 2 sp. Planorbulina, i sp. Truncatulina, i sp. 



Rotalia, 2 sp. Polystomella, 2 sp. Nonionina, i sp. 



The American Naturalist. {Philadelphia: McCalla &> 

 Staveley.) — We have just received the 12 monthly parts forming 

 the 1 6th annual volume of this most interesting Journal. It 

 contains 1057 pages, 16 lithographic plates, and a great number 

 of engravings. On a careful perusal of this journal we find it to 

 be all that its title claims for it, viz., a " Naturalist, devoted to the 

 Natural Sciences in their widest sense." 



Each part contains a number of carefully written articles, 

 amongst which we notice — " The Blind Cave-Fishes and their 

 AUies;" "A Parasitic Isopod Crustacean, and some of its 

 developmental stages ; " "The Heterogeny of Oxalis Violacea;" 

 " Forests, their influence upon Climate and Rainfall ; " " The 

 Tertiary Formations of the Central Region of the United States;" 

 etc. etc. The articles are all well written, and exceedingly 

 interesting. In addition to which in each number are to be 

 found departments devoted to Recent Literature, Botany, Zoology, 

 Entomology, Anthropology, Geology, Paleontology, and Mineral- 

 ogy, Geography and Exploration, and last but not least. Micro- 

 scopy. In memory of the late Charles Darwin, the part for June 

 is devoted in a great measure to articles on Evolution. Amongst 

 other papers we were particularly interested with that on the 

 " Transformations of Planorbis at Steinheim, with remarks on the 

 effects of gravity upon the forms of sheUs and animals" ; this paper 

 is illustrated with two plates. 



The "American Naturalist" is edited by Messrs. A. S. Packard, 

 jun., and Edward D. Cope, assisted by several other eminent men, 

 and is unquestionably a journal in which the Scientist, no matter 

 what his special branch of Science may be, will be sure to find 

 something relating to his own particular pursuit, and we have 

 much pleasure in cordially recommending it to our readers. 



