Reports and Proceedings — Geological Society of London. 85 



Ainphibolite from Olmuth ; Diorites froni Wiluierich, from Winkel- 

 hornfloss, near Schillingen, from the Grinburg, near Wadrill, and 

 from Pascbel, near Zerf. A decomposed dioritic rock from Scboden 

 on the Saar is also described. Diabases from Kellenbach, Forstel- 

 bach, Hockweiler, near Trier, Saarburg and other localities, are 

 likewise treated of at some length. Descriptions of numerous 

 Melaphyres from different localities are followed by an account of 

 what is headed as a Porphyry, from Ehaunew, which is shown to be 

 a fine-grained granitic rock with porphyritic felspar crystals. 



The descriptions are clear, and the drawings at the end of the 

 treatise are well calculated to explain those portions of the text 

 which need illustration, as they are rendered in the slightly diagram- 

 matic manner which characterizes the microscopic drawings of many 

 of the leading continental petrologists. F. R. 



IV. — The American Quarterly Microscopical Journal. Con- 

 taining the Transactions of the New York Microscopical 

 Society. No. I. (New York, October, 1878.) 



WE heartily wish Mr. Eomyn Hitchcock, the Editor of the 

 above, all possible success in his arduous but much needed 

 undertaking. 



That the United States should have been hitherto without a 

 journal of Microscopy is certainly an anomaly, considering the 

 numberless other scientific publications of which it can proudly 

 boast, and the immense field there open for all comers to work in. 



We trust, therefore, that this attempt to supply a known defect 

 may meet with a fate quite the reverse of that which attended its 

 predecessor the "Lens." 



The part before us is got up somewhat in the style of our lately 

 defunct " Monthly Microscopical Journal," but printed on better 

 paper, and illustrated with, we venture to add, still more excellent 

 plates. 



Though the present number does not contain any papers of special 

 interest to the geologist, still we nevertheless trust that from time 

 to time we may see, and be able to record as occurring in its pages, 

 articles on Microscopic Geology. B. B. W. 



RBPOBTS -A-HSTID ZFZEaOCIEJIEIDIISra-S. 



Geological Society op London. — I. — December 4, 1878. — Henry 

 Clifton Sorby, Esq., F.R.S., President, in the Chair. — The following 

 communications were read : — 



1. " On some Mica-Traps from the Kendal and Sedbergh Districts." 

 By Prof. T. G. Bonney, M.A., F.R.S., F.G.S., and F. T. S. Houghton, 

 Esq., B.A. 



The rocks described by the authors are mapped by the Geological 

 Survey on Quarter Sheets 98 N.E., 98 S.E., and 97 N.W., and in 

 parts briefly mentioned in the accompanying memoirs, under the 

 generic name mica-trap. Seventeen examples are described macro- 



