132 NATURAL SCIENCE. February. 1897. 



attacked by those very ticks which it has permitted to multiply. 

 The balance of nature is therefore being restored. The lizards, 

 snakes, and birds are reappearing, and " the maximum influence both 

 for good and for evil, of Herpestes inungo, is passing away in Jamaica." 



Boletiin do Museu Paraense contains in the 4th part of the first 

 volume, a striking plate of the water-plant Monrera fiuviatilis, one of 

 the Podostemacese, illustrating a contribution to the botanical 

 geography of Guiana, by Dr. Jacques Huber. Herein also F. Katzer 

 announces the discovery by Dr. Joao Coelho of Silurian rocks, largely 

 composed of sponge-spicules and containing graptolites, in the 

 Maecuru valley. Such fossils had not previously been found in Brazil. 



The Cheltenham Examiner has lately been publishing a series of 

 articles on Cheltenham as a health resort, in which we are as much 

 surprised as pleased to find one entitled " The Great Divide," a term 

 which the writer here applies to the water-shed between the 

 Severn and the Thames. He proceeds in thoroughly scientific, no less 

 than popular fashion, to show how this has gradually moved back- 

 wards from the west, so that the Cheltenham area, instead of draining 

 into the Severn, formerly supplied the Thames. The Chelt now 

 flows westward, but there is evidence of a former river flowing along 

 the same valley, but in an easterly direction, draining the westerly 

 extension of the Cotteswolds, since worn away. 



Cedric Chivers' " New Book List," the first volume of which has 

 just closed, is a useful idea well carried out. But it will not be of 

 much help to scientific men till someone of more technical knowledge 

 is placed on its staff. A zoologist, looking at the subject index of 

 no. 12, would infer that no zoological works had been published 

 during December last ; and yet the list itself contains Newton's 

 " Dictionary of Birds, Part IV.," Cunningham's " Natural History of 

 the marketable marine Fishes of the British Isles," Grant's " Hand- 

 book to the Game Birds, Vol. II.," " The Cambridge Natural His- 

 tory, Vol. II.," and five or six others that ought to have been referred 

 to under zoology. So also Bailey's " Survival of the Unlike " is 

 not alluded to under botany. 



Other Literature Received. 



Fabrica Oris Dipterorum, H. J. Hansen : Copenhagen, Reitzel. Die Leitfossilien, E. Koken: 

 Leipzig, Tauchnitz. Bibliography of more important Contributions to American Economic 

 Entomology, pt. v., S. Henshaw : U. S. Dept. Agric. Traite de Zoologie Concrete, Y. Delage and 

 E. H^rouard, vol. i. La Cellule et les Protozoaires : Paris, Schleicher. An Account of the Crustacea 

 of Norway, vol. ii„ G. O. Sars : Bergen Mus. Catalogue of Afiican Plants collected by Dr. F. 

 Welwitsch in 1853-61, pt. i, W. P. Hiern : Brit. Mus. {Nat. Hist.) The Survival of the Unlike, L. H. 

 Bailey : New York, Macmillan. A Dictionary of Birds, pt. iv., A. Newton : Black. 



Undescribed Shrew of Genus Sorex, C. F. Batchelder ; Rev. Squirrels of N. America; 

 Skunks of Genus Af«^/«Yts of E.N. America ; New Mammals from Indian Territory and Missouri, 

 O. Bangs ; Romerolagns netsoni, n.g. and sp. of Rabbit, C. H. Merriam ; Proc. Biol. Soc. Washington. 

 Entwickelung d. sogen. Lungen bei den Arachniden, A. Jaworowski : Zeitschr.f. wiss. Zoologie. 

 Entwickelung des Spinnapparates bei Trochosa &c., A. Jaworowski : Zeitschr. /. Naturwiss. Instruc- 

 tion in Natural History in the Jardin des Plantes, Paris, C. Earle: Science. On the Bio-Geography 

 of Mexico. &c., T. Townsend : Trans. Texas Ac. Sci. N. American Oligochasta, F. Smith: Bull. 

 Illinois State Lab. Nat. Hist. Human Relics in Drift of Ohio, E. W. Claypole: Amer. Geol. On the 

 Teeth of Mazodus ; On the Structure of some Palasozoic Spines from Ohio, E. W. Claypole: Proc. 

 Amer. Micr. Soc. Insects affecting the Cotton Plant, L. O. Howard ; Bull. U.S. Dept. Agric. 



Nature, December 17, 24, 31, January 7, 14. Nature Notes, Jan. Science Gossip, Dec, Jan. 

 Naturalist, December, January. Westminster Review, January. Victorian Nat., Nov. Knowledge, 

 January, Photogram, January. Irish Naturalist, January. Scott. Geogr. Magazine, January. 

 Revue Scientifique, December 12, 19, 26, January 2, 9, 16. Feuille des jeunes Naturalistes, January. 

 L'Anthropologie, November-December. Naturcn, January. Naturae Novitates, Nov. (22), Dec. (24). 

 Literary Digest, December 12, 19, 26, January 2, 9. American Journ. Science, January. Science, 

 December 11, 18, 25, January i, 8. Amer. Nat., December. Amer. Geol., December. Botanical 

 Gazette, December. Illinois Wesleyan Mag., October, November. Psychological Review, January. 

 De Gids, January. 



