1876.] Biology of the ' Valorous' Cruise, 1875. 229 



Twenty grains, partly soluble with effervescence in acid, when washed 

 and dried, left a residue w^eighing 15 grains. 



Holsteinborg Harbour : 10 fathoms. Chiefly a blackish sand. 



The washiugs yielded the following Diatoms: — Coscinocliscus oculus 

 iridis, Ehrb. ; Amjpliora proteus, Greg. ; A. Leighsmithiana, O'Meara ; 

 A. lanceolata, Cleve ; Navicula dichjma, Ehrb. ; N. ovcdis, Sm. ; Nitzschia 

 distans, Grreg. ; Gmmmatojyliora marina, Ktz. 



Erom H.M.S. 'Aleet.' 

 Station No. 1. Lat. 65° N., long. 53° W., 30 fathoms. 

 DiatomacesB : — Graiimnatoj^liora marina, Ktz. ; Rhahdonema arcuatum, 

 Ktz. ; Navicula Archeriana, O'Meara ; N, ellijptica, Sm. ; N. pinnularia, 

 Cleve ; Coscinodiscus siihtilis, Ehb. ; C. radiatus, Ehb. ; C. oculus iridis, 

 Ehb. ; Cocconeis glacialis, Cleye; Amjpliora cymhifera, Grreg. 



Catalogue or Pebbles and Mijteeals deedged by 

 Me. Gwy2^ Jeepeeys. 



28 Jermyu Street, IN'ov. 8, 1875. 



1. 690 fathoms. Amygdaloidal porous decomposing igneous rock, light 



and spongy, owing to decomposition. Probahhj from Iceland. 



2. 690 fathoms. Station 12. Admiralty, No. 9. Lat. 56° 1' N., long. 



34° 42' W. Aug. 20, 1875. Eelstone and quartzite, altered basalt. 



3. 410 fathoms. Small pebbles of gneiss and quartzite from No. 5. 



Aug. 10, 1875. 



4. 1450 fathoms. Eine-grained quartzite (many nodules) ; gneiss ; 



argillaceous limestone (Silurian ?) ; fine-grained sandstone ; horn- 

 blendic rock, much quartz ; fine-grained felstone ; pale bulf sandstone ; 

 hornblende and quartz ; amygdaloidal greenstone (vesicular) ; fine- 

 grained siliceous rock ; steel-grey felspathic rock, fine-grained ; fel- 

 stone, grey, close-grained. Eock specimens all rounded and water- 

 worn. Most liJcelif derived from Iceland. 



5. Minerals same depth, marked 1450 fathoms, No. 11. Aug. 19, 1875. 



Black mica; obsidian; quartz (crystallized); flint; basaltic rock in 

 same series. 



6. 1750 fathoms. Lat. 59° 10' N., long. 50° 25' W. Quartz pebbles ; 



ashy matter, igneous ; vesicular rock (decomposed amygdaloidal 

 trap ?). Probably Iceland. 



7. 1785 fathoms. Lat. 55° 10' N., long. 25° 58' W. Decomposing argilla- 



ceous limestone. 



All the pebbles associated with the Balani from the shore are gneiss ; 

 much white quartz in the matrix. 



E. Etheeidge. 



