5 So Recent Literature. [July, 



of the various steps to be taken in order to acquire an autoptic 

 and thorough knowledge of its structure and, in all but one or two 

 forms, of its development as well. These directions for study are 

 almost invariably full, clear and explicit, while the numerous out- 

 line figures (of which there are 202) give one an idea of what to 

 look for, and at the same time form a useful basis for comparative 

 study. These figures are for the most part clear and easily under- 

 stood, and possess one very pleasing feature, they are original 

 and have a freshness not always found in books of like char- 

 acter. The book is well printed, and is a credit to its pub- 

 lisher; the typographical errors are few, as are those of the text; 

 to one or two of the illustrations and a few of the statements of 

 the text, we would not agree, though the points in question are of 

 minor importance. On the whole we regard the work as by far 

 the best text-book for laboratory work. — J. S. Kingsley. 



Hartman on Pa rtula. 1 -- -The' genus Partula was founded by 

 Ferussac in 1819. The species of this genus have been referred 

 to various genera by authors, as to Helix, by Muller; Ottis, Hump., 

 1797; Azvris, Klein, 1753, to which they were referred by Chemnitz; 

 lhdimtis, Scopoli, 1777, this -nunc name being employed forcer- 

 tain of the species by Bruguiere; Volute (Voluta Linn.. 17^'). by 

 Dilhvyn; Partulus, Heck, i8 37 ; and Partula bv Pfciffer, W. H. 

 Pease, O. Semper, W. G. Binney, and our author. In the first of 

 these brochures the author gives a catalogue of the known species, 

 with authorities for specific nomenclature, and indicates also the 

 remarkable synonomy of the genus. He divides all the forms into 

 the auriform and bulimoid divisions, each of which seem to be suffi- 

 ciently well marked. The major part of the work is devoted to the 

 erection of sub-genera, having more or less claim to consideration. 

 The characters of these several sub-genera are succinctly stated, 

 accompanied by a figure of the species used as its type. It is a 

 matter of regret that the author has adopted for a sub-generic no- 

 menclature so many mythologic na m lied to Roman 

 deities of more or less note. In this, however, he follows the 

 example of the illustrious founder of the genus, and in view of 

 the great beauty of the forms he studied mav well be pardoned. 

 However, it must be admitted that the use of names embodying, 



aid the student. The number of sub-genera erected is fourteen. 

 among which the species are very unequally distributed. 



made, inasmuch as in it 



tributi 



the an 



Ih 



s to the 





mature of Pai 

 rporated nun 



Prints 

 Obsei 







the 



Genus P.irtala, 



■ F. S. Hickman, 

 ecies of the Gent 



