REVIEWS 85 



area of high mountains. This radial drainage is thought to be consequent 

 to some domed surface, probably a peneplain. 



The formations involved in the geology of the coastal region of the Olympic 

 Peninsula include serpentine, old diabase or greenstone, metamorphosed sand- 

 stone, and quartzite, probably of Jurassic age; 6,000+ feet of gray sandstone 

 with minor quantities of carbonaceous^shales, supposed to represent the lower 

 part of the Puget Group and of Cretaceous age; 1,200+ feet of basalt tuffs of 

 Eocene age; 15,000 feet of Ohgocene-Miocene conglomerate, sandstone and 

 shale; 2,260 feet of Pliocene conglomerate, sandstone, and shale; and at least 

 300 feet of Pleistocene till, clay, and gravel. 



Fossils are abundant in the Tertiary formations. One fauna is described 

 from the Eocene, five from the Oligocene-Miocene, and one from the 

 Pliocene. The peculiar upper Miocene fauna of the Looke beds, which 

 is well developed on Vancouver Island, only 15 miles northward, is con- 

 spicuous by its absence. . ^ 



c. w. w. 



Contribution to the Geology and Paleontology of Vermont. By Henry 

 M. Seely. From the Fifth Report Vermont State Geologist, pp. 

 1-34, Plates XXXIV-XLV. Montpelier, Vt., 1906. 



The greater part of this paper is taken up with description of new species 

 of the so-called genus, Cryptozoon. None of the characters assigned to 

 these three new species, C. steeli, C. saxiroseum, and C. wingi differ from 

 structures that may be occasionally observed in undoubted concretions. 

 The reviewer can find no reason for regarding such structures as organic, 

 except to the extent that bacteria or similar organisms may have contributed 

 to the precipitation of the calcite or silica composing them. In fact the only 

 structure in Hall's description of the type species^ that may be organic is 

 certain doubtful canals, of which he writes: "The substance between the 

 concentric lines, in well-preserved specimens, is traversed by numerous 

 minute irregular canaliculi which branch and anastomose without regu- 

 larity." The exact nature of these is not clear, but probably they are similar 

 to the "pilae" figured by Seely (Plate XXXVII, Fig. 3) which cannot be 

 distinguished from irregular inorganic segregations common in many con- 

 cretions, cherts, and limestones. 



A startling feature of the paper is the description (p. 12, Plate XXXVII, 

 Figs. 5, 6) of a specialized ovarium with ova in "Cryptozoon saxiroseum." 

 That such a structure, so well developed, should exist in so primitive an 



I James Hall, Thirty-Sixth Annual Report N. Y. Mus. of Natural History, 

 transmitted to the legislature, January 12, 1883. {Cryptozoon proliferum.) 



