FOEETGN INTELLIGENCE. 



63 



been made for the whole kingdom, and those of the second order have 

 been completed for the province of Madrid. The maps are on the scale 

 of YoVo f° r the country, and for cities. The geological department has 

 completed its work in the provinces of Burgos, Santander, and Madrid ; 

 and those of Leon, Zamora, and Avita, are in progress. 



The Transactions of the American Philosophical Society, vol. xii. (parts 

 i. and ii.), contains the " Geology and Natural History of the Upper Mis- 

 souri," with a map, by Dr. F. V. Hayden. In the ' Journal of the Phila- 

 delphia Academy ' (vol. v., part ii., October, 1862) there is a " Monograph of 

 the Fossil Polyzoa of the Secondary and Tertiary Formations of North Ame- 

 rica," by Mr. Gabb and Dr. Horn, with beautiful lithographic plates by 

 Ibbotson ; and an article on the " New Unionidse of the United States and 

 Arctic America," by Mr. Isaac Lea. The number of species described or 

 known to exist were stated by Mr. Lea, in 1860, as, — Unto 465, Margari- 

 tacea26, Anodonta 59, =550 ; to which he added, as not described, 30 in 

 his own cabinet, 36 from North America, Mexico, Honduras, and Central 

 America, and 1 from Canada ; in all 617. Since then he has produced the 

 above, and a previous paper containing further additions. 



Professor Dana's ' Manual of Geology ' has appeared (Triibner, 1863, 

 8vo, pp. 812). It treats the science with special reference to American Geo- 

 logical History, for the use of colleges and schools of science. The work 

 is divided into four parts : — I. Physiographic ; II. Lithological ; III. His- 

 torical ; and IV. Dynamical Geology. 



The ' Canadian Naturalist ' for October contains a letter " On the Catt- 

 skill Group of New York," by Professor James Hall. Late investigations, 

 he says, have forced upon him the conviction that the greater part of the 

 area coloured on the Geological Map of New York as Cattskill Group is 

 in reality occupied by the Portage and Chemung Groups. Several years 

 since, in making sections across the country from north to south, and 

 through the counties of Albany and Schoharie, he ascertained that the 

 Hamilton Group, as indicated by its well-marked and characteristic fossils, 

 extends to the southern limit of the colouring indicating the Chemung Group 

 on the Geological Map. He is prepared to show now that the Hamilton 

 Group in the counties of Albany, Greene, Schoharie, Otsego, and a part 

 of Chenango, with the exception of some outlines on the higher hills, oc- 

 cupies nearly the entire belt coloured as Chemung, the southern line cor- 

 responding very nearly with the limit assigned to that formation ; thus 

 leaving the Chemung Group, with its southern limits, still unassigned. 

 Until within a few years, the State collection had been nearly destitute of 

 fossils from the rocks of Delaware county, according to the map, Cattskill 

 Group. Some time since, Professor Orton, of the Normal School, Albany, 

 sent specimens which were recognized as characteristic of the Chemung 

 Group ; but as it was possible they might have been derived from trans- 

 ported masses, no decision was come to. More recently, Mr. J. M. Way, 

 of Franklin, Delaware county, has found fish-remains in considerable 

 abundance ; from loose and scattered masses he has traced the specimens 

 to their position in the hill-slopes, and has ascertained the existence of no 

 less than three distinct beds containing these ichthyic remains. Asso- 

 ciated with these, he has found numerous shells typical of the Chemung 

 Group. Professor Hall describes these strata and their contents in detail. 

 There is also a letter by Colonel E. Jewett on the same subject. 

 Mr. Eoff, C.E., of Montreal, read before the Natural History Society, 

 in November, a paper " On the Superficial Deposits of Canada.' On this 

 subject Dr. Dawson, in Lower Canada, has made many valuable contribu- 

 tions ; and in the Upper Province, Professor Chapman, of Toronto, and Mr. 



