262 Proceedings of the Royal Society of Edinburgh. [Sess. 
XX. — Report on Rock Specimens dredged by the “Michael Sars” 
in 1910, by H.M.S. “Triton” in 1882, and by H.M.S. “Knight 
Errant ” in 1880. By Dr B. N. Peach, F.R.S. (With Folding 
Map, Text Figs., and Nine Plates.) 
(MS. received March 18, 1912. Read May 13, 1912.) 
I have been entrusted by Sir John Murray, K.C.B., with the examination 
of some of the coarser materials, more especially the rock-fragments, 
obtained from the bed of the Atlantic by Sir John Murray and Dr Hjort 
during the recent Michael Sars Expedition in 1910, and also with the 
re-examination of the collections dredged from the Wyville Thomson ridge 
and the Faroe Banks during the former expeditions of H.M. ships Triton 
in 1882 and Knight Errant in 1880.* 
The present report is a summary of my examination, the more detailed 
description of the specimens obtained by the Michael Sars being reserved for 
the forthcoming official report of the expedition. 
The material obtained by the Michael Sars will be discussed first, and as 
that from Station 95 is not only the most abundant but also the most 
interesting, it will now be dealt with. 
Station 95. 26th July 1910. 
Lat. 50° 22' N., long. 11° 44' W. ; depth 1797 m. (981 fms.). 
The material from this station, which lies about 230 miles south-west of 
Mizen Head in Ireland, naturally falls under two categories, viz. (1) over 200 
rock fragments which may be considered to owe their presence on the bed of 
the sea to natural agencies ; (2) a large quantity of furnace-slag (“ clinker ”) 
or cinder, a few fragments of coal, and three small pieces of glazed pottery 
with “ willow pattern ” in blue, all of which have fallen from ships. There 
is also the cannon bone of a small ox, which may have dropped from a 
floating carcase, although there is still more likelihood of its having been 
thrown overboard from a cattle ship. 
I. Distributed by Natural Agencies. 
The rock-fragments from this station, all of which have been only 
partially embedded in globigerina ooze, are thus shown to be loose and 
removed from their parent rocks. They furnish examples of the three 
* Proc. Roy. Soc. Edin ., vol. xi., 1882, p. 638. 
