weeks] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1898. 87 
745 Stewart (Alban). A contribution to the knowledge of the Ich- 
thyic fauna of the Kansas Cretaceous. 
Kan. Univ. Quart., vol. vii, pp. 21-29, pis. i-ii, 1898. 
Describes a number of new species. 
746 Individual variations in the genus Xiphactinus Leidy. 
Kan. Univ. Quart., vol. vii, pp. 115-119, pis. vii-x, 1898. 
Describes material in the Kansas University museum. 
747 Some notes on the genus Saurodon and allied species. 
Kan. Univ. Quart., vol. vii, pp. 177-186, pis. xiv-xvi, 1898. 
Reviews the literature on Saurocephalus and Saurodon and describes 
two new species of Saurodon. 
748 A preliminary description of seven new species of fish from 
the Cretaceous of Kansas. 
Kan. Univ. Quart., vol. vii, pp. 191-196, 2 figs., 1898. 
749 Stoddard (W. B.), Palmer (C. S.) and. The dike on the Colum- 
bia vein in Ward district, Boulder County, Colorado. 
See Palmer (C. S.) and Stoddard (W. B.), No. 597. 
750 Stone (A. M.). Corundum mining in North Carolina. 
Eng. and Mg. Jour., vol. lxv, p. 490 (£ p.), 1898. 
Gives brief notes on the occurrence of corundum. 
751 Stone (George EL). The granitic breccia of the Cripple Creek 
region [Colorado]. 
Am. Jour. Sci., 4th ser., vol. v, pp. 21-32, 1898. 
Describes the occurrence of a number of dikes, and the character and 
relations of the associated granites and schists. Discusses the lacustral 
theory of the origin of certain deposits. 
752 Storms (W. H.). Gold formations in California. 
Mg. and Sci. Press, vol. lxxvi, pp. 110-111, 1898. 
Discusses the formation of fissure systems and the occurrence of gold 
veins and auriferous gravels in California. 
T. 
753 Taff (Joseph A.). Geology of the McAlister quadrangle [Indian 
Territory]. 
Science, new ser., vol. vii, p. 612 (£ p.), 1898 . 
Contains summary of paper read before the Geological Society of 
Washington. 
754 Tarr (R. S.). The peneplain. 
Am. Geol., vol. xxi, pp. 351-370, 1898. 
Discusses the evidence regarding the theory of the peneplain. 
755 Wave-formed cuspate forelands. 
Am. Geol., vol. xxii, pp. 1-12, pis. i-iv, 1898. 
Describes the character of the materials and mode of formation of 
cuspate forelands. 
