166 Scientific Intelligence. 



stream into the Indian Ocean. Koken's generalizations have added 

 value because of his detailed paleontologic knowledge. c. s. 



2. Geological Survey of Western Australia, Bulletin 29. A 

 Report iqyon the Geology, together loith a description of the 

 Productive Mines of the Cue and Day Dawn Districts, Murchi- 

 son Goldfield ; by Harry P. Woodward, Assistant Government 

 Geologist. Part I, Cue and Cuddingwarra Goitres ; pp. 93, with 

 3 maps, 12 photographs, 2 blocks, and 15 plates of sections. 

 Part II, Day Dawn Centres ; pp. 43 and appendices, pp. 44-53, 

 with 2 maps, 7 photographs, 1 figure, and 8 plates of sections. 

 Perth, 1907. — The general conditions under which gold deposits 

 occur in Murchison are in lenticular-shaped amphibolite belts, 

 ''surrounded or sandwiched with granites, the whole being inter- 

 sected by numerous feldspathic dikes." The oldest rock of 

 the Cuddingwarra and Day Dawn districts is an amphibolite. 

 Grano-diorite occurs as a magmatic intrusion into the amphibo- 

 lite. A remnant flow of vesicular andesite caps Cue hill. The 

 topography is diversified by the presence of "table tops" made of 

 granite "which owes its weather-resisting character to iron oxide 

 which has been drawn up in solution by capillary attraction 

 through leaching of the rocks below". 



Gold occurs chiefly in quartz reefs, the production being — Cue, 

 212,855 ounces, Cuddingwarra, 35,461 ounces, and Day Dawn, 

 847,692 ounces. h. e. g. 



3. Illinois State Geological Survey, H. Foster Bain, Direc- 

 tor. Bulletin No 7. Physical Geography of the Evanston- 



Waukegan Region • by Wallace W. Atwood and James W. 

 Goldthwait. Pp. 93, pis. 14, figs. 52. ITrbana, 1908. — It is 

 becoming recognized that geologists are under obligation to 

 present the main facts of their science in such a manner as to be 

 of direct use to teachers and to the general reader. Following 

 the lead of the Connecticut Survey, the Geological Survey of 

 Illinois has planned a series of bulletins dealing with the physical 

 geography of the state and designed primarily to present material 

 more or less well known to experts in a form directly available 

 for the intelligent reader. The volume in the series listed above 

 is well arranged, well written and illustrated and contains inter- 

 esting material. h. e. g. 



4. Map of Vesuvius. — The Instituto geografico militare of 

 Italy, at Florence, has published a new edition (1908) of an 

 excellent map of Vesuvius in colors, on a scale of 1 : 25,000 (2 

 francs) indicating all determinable lava flows, with their dates, 

 down to 1906 ; also a map of the volcano in black, in six sheets, 

 scale 1 : 10,000 (4.50 francs for the set) ; also two special maps of 

 the cone of the volcano, 1 : 10,000, before and after the eruption 

 of 1906 (each, one franc). Of the general map of Italy, 1 : 100,000, 

 by far the most legible edition is the one known as u sy sterna 



Gliamas" in four colors, now in course of publication (1.50 

 francs a sheet, 27 sheets published ; edition on thin paper prefer- 

 able). W. M. D. 



