Geology and Mineralogy. 255 



term Keweenian was not only proposed subsequently, but rested 

 upon no extensive, careful and specific field investigation on the 

 part of the author, which, on the principle above indicated, is the 

 necessary sanction of acceptable nomenclature. 



T. C. CHAMBERLIN. 

 University of Wisconsin, Nov. 15, 1887. 



2. Contributions to the Paleontology of Brazil, comprising 

 descriptions of Cretaceous Invertebrate fossils, mainly from the 

 Provinces of /Sergipe, Pernambuco, Para and Bahia; by Charles 

 A. "White. From vol. vii of Arch, do Mus. Nacional do Rio de 

 Janeiro. 274 pp. 4to, with 28 plates. — The Cretaceous fossils 

 described by Dr. White were collected by the Geological Survey 

 of Brazil while it was under the charge of Prof. C. F. Hartt, and 

 were sent to Dr. White for description by Mr. Orville A. Derby. 

 The rocks occupy a coast region from the mouth of the Amazon 

 southward for eighteen degrees of latitude. The fossils include 

 many Cretaceous types, but it is remarkable, says Dr. White, that 

 the conchifers, and especially the gasteropods, have little in 

 common with those of North America. The fauna as a whole 

 seems to be more nearly related to the Cretaceous of southern 

 India than to any other thai has been investigated — a fact appa- 

 rently indicating that part of the peculiarities may be due to the 

 equatorial temperature. The fauna is spoken of as having also a 

 Tertiary feature in the presence of species of Fusus, Murex, Phorus, 

 etc. The most of the species are new. They are beautifully 

 figured on the 28 lithographic plates. The Cephalopods are re- 

 ferred to thirteen species and among them there is one Helicoceras. 

 The Ammonites include Ammonites IPopJcinsi of Forbes which 

 agrees well with Stoliczka's figures of a specimen from India, and 

 A. planidatus Sowerby, which also occurs in India, or a species 

 very near it. Plates 27 and 28 are devoted to the Echinoderms, 

 of which there are 15 species. 



3. Arkansas Geological Survey. — The Geological Survey of 

 Arkansas, under the charge of Dr. Branner, is going forward with 

 vigor, through the aid chiefly of volunteer assistants. A report on 

 Clarke County by Mr. R. T. Hill, with a geological map, will be 

 finished this season, and another, on Washington County, by Dr. 

 F. W. Symonds. Work is going forward also on the coal fields 

 by Arthur Winslow. 



4. Fossils of Bittleton, JVew Hampshire. — The Littleton fossils 

 were referred to the Niagara group by Prof. C. H. Hitchcock, in 

 1884, in a paper on Geological Sections crossing New Hamp- 

 shire and Vermont, in the Bulletin of the American Museum of 

 Natural History of New York. 



5. Palmolithic Man in Northwest Middlesex : The evidence of 

 his existence and the physical conditions under which he lived in 

 Ealing and its neighbourhood, illustrated by the condition and 

 culture presented by certain existing savages ; by John Allen 

 Brown, F.G.S. 228 pp., 8vo, with frontispiece and 8 plates. 

 London, 1887. [Macmillan & Co.] — This interesting volume is 



