1894- SOME NEW BOOKS. 149 



limits and characters are distinctly defined, on correct morphological 

 principles, in that author's " Genesis of the Arietidae " (Smithsonian 

 Contrih., 673). 



The Societa Malacologica Italiana has published in its Bolletino 

 (xviii., pp. 73-108) a paper by Guido BonareUi, which is of consider- 

 able value to students of Ammonites, being a descriptive catalogue 

 of over thirty species, which the author unites under the new generic 

 name Hecticoccras. The type-species of the genus is A. hecticus, 

 Reinecke, while A. lunula, Reinecke, serves as type-species of a 

 subgenus Lunuloccvas. It is to be hoped that these new genera will 

 prove to have been formed better than their names. Professor 

 Bonarelli considers that Hecticoceras belongs to the family Oppelidse, 

 and that it was derived from Oecotranstes. This opinion is probably 

 correct ; but then Oecotranstes, as at present constituted, includes 

 rather a heterogeneous assemblage of Oppelidae, and would, in fact, 

 form a worthy object for the learned author's further investigations. 

 Meanwhile, the present paper marks one more forward step towards 

 the true classification of the Ammonites. 



The Royal Scottish Geographical Society's Atlas of Scotland is 

 announced to be published by the Edinburgh Geographical Institute 

 (J. G. Bartholomew & Co.) next June. It will comprise a series of 

 sixty-two plates of maps and plans, illustrating the topography, 

 physiography, geology, natural history, and climate of the country ; 

 these being accompanied by an explanatory and statistical text. The 

 completion of the publication of the Ordnance Survey Maps, the 

 advanced progress of the Admiralty and Geological Surveys, and the 

 large collection of data, produced by the recent activity of Scottish 

 scientific societies, in the departments of Meteorology, Natural 

 History, and Archaeology, seem to make the present time most favour- 

 able for the production of an Atlas in which that valuable work shall 

 be summarised and incorporated. 



In Natural Science, vol. ii., p. 385, we noticed M. Guinard's 

 book, "Precis de teratologie" ; we have now received a smaller 

 volume, by Louis Blanc, " Les Anomalies chez I'liomme et des 

 mammiferes" (Balliere, Paris, 1893, 3^8 pp., price 3 fr. 50), in which 

 the student will find a great amount of useful and interesting infor- 

 mation. The volume is fully illustrated. 



In referring last month (p. 77) to Mr. Minchin's translation of 

 Professor Biitschli's work on Protoplasm, we erroneously ascribed 

 its publication to the Clarendon Press. English-speaking students 

 are indebted to the firm of Messrs. A. & C. Black for this enterprise, 

 and the volume will probably be issued early this month. 



Captain H. G. T. Swayne, who has made seventeen shooting and 

 exploring trips into Somali Land, North-East Africa, is writing an 

 account of the country, which will shortly be published by Rowland 

 Ward & Co., of 166 Piccadilly, W. 



Messrs. Dulau & Co. have issued part xxxi. (Reptilia and 

 Amphibia) of their Catalogue of Zoological and Palaeontological 

 Works. Numerous rare pamphlets are included in this useful sale- 

 catalocfue. 



