68 



These specimens comprise : .A. large green slate from the Lake 

 District showing ripple drift ; two slabs of the coarse agglome- 

 ratic green slate of the Lake District, so cut as to show the 

 irregular shape and arrangement of the fragments as seen on 

 the cleavage surface, contrasted with their uniform elongation in 

 the same direction as seen in the plane perpendicular to the 

 cleavage; a piece of contorted foliated quartzite, labelled 

 " Inverary, with foliation in the axis of compressed contortions ;" 

 two specimens of compressed mica schist with the layers pulled 

 out in their own direction ; and an^inlabelled piece of dark mica 

 schist, which has been much contorted and broken along lines 

 in which mica is developed, and between these there are other 

 curving transverse lines also rilled with mica. 



213. Lithographed plates, illustrating the microscopic 

 structure of limestones. 



1876. Lent by Dr. H. C. Sorby, F.R.8. 



These show structures due to larger or smaller fragments 

 of organic bodies or grains of sand, and to the more or less 

 complete development of crystals formed either during or after 

 the deposition of rock. 



214. Collection of specimens of calcareous and siliceous 

 deposits from the geysers of the Yellowstone valley. 



Presented by Prof. Hayden through the United States 

 E. 4. 1881. Engineer Bureau of the War Department. 



There are a large number of specimens of various sizes, some 

 broken off from solid masses, and some in a rolled condition. 

 They are all white and sintery in aspect, and there is no indication 

 as to which are calcareous and which are siliceous. 



215. Specimens of minerals from Australia. 



Given by J. E. Fairfax, " Sydney Morning Herald " 

 E. l._ 1874! Office. 



Two mahogany trays with 68 fixed compartments, each 2 in. 

 square. 



216. Minerals from New Brunswick. 



Given by E. Britain, St. John's, New Brunswick. 

 E. 170 to 174. 1868. 



See Report on the Geology of New Brunswick by H. Youle 

 Hind. 



1. Copper ore from Charlotte county. 

 2-4. Albertite from Albert county. 



5. Iron ore from Woodstock, Carleton county. 



6. Iron ore from Westbeach, St. John's county. 



7. Bituminous shale or schist from Baltimore, Albert county, 



