310 Scientific Intelligence. 



the treatise commences with Carbon, under which, the subject of 

 the Diamond covers near 50 pages ; and then follow, with full 

 details, the subjects of natural gas, petroleum, bitumen and 

 other hydrocarbons, carrying the work to the 220th page. Like 

 fulness as to details characterizes the whole work. Besides 

 descriptions, the work contains a large number of maps of the 

 mineral regions, several of them giving the geological forma- 

 tions; and among these there is a colored geological map of the 

 United States (from Hitchcock's), a map of the petroleum region 

 of western Pennsylvania, one of the Comstock and another of the 

 Eureka region in Nevada, another of the Leadville region, each 

 of these, large and fine detailed maps, with sections and plans of 

 workings. In like manner the various localities of mines and 

 useful minerals of other countries are illustrated. r The work was 

 prepared for the course of applied geology at the Ecole des Mines, 

 at Paris, instituted in 1879 by Prof. Fuchs; and it is well adapted 

 for use in such courses elsewhere. 



1 1. The Glacialists'' Magazine : A Monthly Magazine of Glacial 

 Geology, embodying the Proceedings of the Glacialists' Associa- 

 tion. Edited by Percy F. Kendall, F.G.S. and Secretary of 

 the British Association Committee on Erratic blocks ; assisted by 

 Warren Upham, C. E. DeRance, President of the Glacialists' 

 Association, and J. Lomas, A.R.C.S. — This first number of the 

 Glacialists' Magazine, covering 30 pages, contains, besides vari- 

 ous notes on Glacial subjects, the Presidential Address of the 

 Glacialists' Association, C. E. DeRance, and a discriminating 

 review of Howorth's " Glacial nightmare and the Flood." The 

 magazine, as its editorial corps indicates, will be a valuable 

 Journal for the American as well as European side of the Atlantic. 



12. Mount Loa, Hawaii. — An ascent of Mt. Loa was made by 

 Rev. E. P. Baker on the 24th of June last. At the summit, the 

 only action to be seen in the summit crater was the escape of 

 vapor, great volumes of which arose from the central area, the 

 same from which it issued from 188.5 to the time of the eruption 

 in 188*7. At the time of his visit to the crater in February 1887, 

 and again in 1888, there was a small crater in the floor of the 

 great central crater near its southwest corner. This small crater 

 was in existence in 1889, when the crater was visited by Mr. 

 Thurston. But nothing was now to be seen of it ; lavas had filled 

 it, making the floor continuous over the place. Its outline only 

 was partially distinct at two or three points in its circumference. 

 — Letter from Mr. Baker, dated Hilo, July 5, 1893. According 

 to an earlier letter from Mr. Baker, on November 30 and Decem- 

 ber 1 and 2 of 1892, a light was seen at the top of the mountain 

 from below, indicating the presence in the bottom of the crater, 

 as his letter states, of molten lava ; and this may have been the 

 time of the occurrence mentioned above. 



13. Brief notices of some recently described Minerals. — Nepttj- 

 nite and Epididymite are two new species described by G. 

 Flink from the neighborhood of Julianehaab on the Kangerdluarsuk 



