ABDENDA. 399 



shore of Volcano Bay, especially near Yamukushinai ; it occurs in several 

 other places. Sidjpkur is mostly found within the craters of extinct 

 volcanoes. Limestone^ the principal exposure is on the stream Garo- 

 nosawa, near Arikawa and Sekirichi ; other localities are named. The 

 limestone is much metamorphosed, is dark blue or light grey, contains 

 no fossils, is well cleaved, and belongs to the Horumui-Karafto system. 

 Gold of the Toshibets field. " The bed rocks are of the Toshibets 

 Karafto system, chiefly soft sand and clay." The gold occurs in gravel 

 bordering the river. Roch Tar occurs at Idzumisawa, where it comes 

 from the " bluish gray shaly sand rock," which corresponds in dip to 

 the Toshibets Karafto system, and contains similar fossils to that and 

 the Yurap Rocks. The Tar comes also from Washinoki and Yamuku- 

 shinai; it is probably Tertiary. Mineral Springs are numerous in the 

 S. part of Yesso : a table is given of 21, showing their locality, heat, 

 the character of the rock in which they occur, &c. 



H. S. Munroe. Geological Survey of Hokkaido. Yesso Coals. Pp. 

 163-199 (with 3 Tables of Assays). 2 general sections of the Kaya- 

 iioma and Horumui Coal-fields show the relative positions of the 

 different coal-beds and the main characters of the rock between. 

 Tables I. and II. contain detailed assays of various Japanese coals. 

 Table III. gives their ultimate analyses and calorific powers. They are 

 neither " lignites nor brown coal, but true bituminous coals." 



B. S. Lyman. Geological Survey of Hokkaido. Eeport of a Geo- 

 logical Trip through and around Yesso, with notices of the Topography 

 .... and of the Progress of the Geological Survey. Pp. 325-564. 

 Several sections, mostly of coal beds, are given. Hot mineral springs 

 were of frequent occurrence. 



B. S. Lyman. Geological Survey of Hokkaido. Reports of Rough 

 Surveys (in 1873) of the following Oil Lands in Yesso : — Yamukshinai, 

 pp. 591-605 ; Idzumisawa, pp. 607-616 ; and Washiuski, pp. 617-631. 

 The oil oozes from the Toshibets rocks (? late Tertiary) through alluvial 

 sands. Fossil Serpidce abound in the Idzumisawa rocks. 



Henry S. Munroe. Geological Survey of Hokkaido. The Gold- 

 Fields of Yesso. Pp. 665-744. [Also published separately : see above, 

 p. 168. J Detailed results of the gold-washing; topographical survey; 

 and an outline of the geology of the Toshibets, Kudo, Esashi, Mat- 

 sumai, Musa, and Tokachi gold-fields. On the journey, numerous so- 

 called copper, lead, and silver mines were examined and reported on. 



R. B. N. 



Sixth Annual Report of the Geological Survey of Indiana, made 

 during the year 1874. Pp. 288 ; 4 maps, (in pocket), with geological 

 notes ; 1 section. 8vo. Indianapolis. 



Geological Report., by E. T. Cox, with sections, and analyses of iron- 

 ores and clays (? by Dr. Gr. M. Levette), pp. 5-23. Antiquities^ p. 24, 

 with sections at pp. 27, 34. Then follow Reports on various Counties, 

 with details of sections, notices of minerals, etc. JacJcson Co. (? by E. 

 T. Cox), p. 41 ; Brown, Co., (by Prof. John CoUett), p. 76 ; JScott and 

 Jefferson Counties (by Prof. W. W. Borden, pp. Ill, 135-186. W. W. 



