CHAPTER III. 
THE CRUISES OF THE ‘ PORCUPINE.’ 
The Equipment of the Vessel.—The first Cruise, under the direction 
of Mr. Gwyn Jeffreys, off the West Coast of Ireland and in the 
Channel between Scotland and Rockall.—Dredging carried down 
to 1,470 fathoms.—Change of Arrangements.—Second Cruise ; to 
the Bay of Biscay.—Dredging successful at 2,435 fathoms.—Third 
Cruise ; in the Channel between Froe and Shetland.—The Fauna 
of the ‘Cold Area.’ 
Appenbi1x A.—Official Documents and Official Accounts of preliminary 
Proceedings in connection with the Explorations in H.M. Survey- 
ing-vessel ‘ Porcupine,’ during the Summer of 1869. 
AppenDIx B.—Particulars of Depth, Temperature, and Position at the 
various Dredging Stations of H.M.S. ‘ Porcupine,’ in the Summer 
of 1869. 
* * The bracketed numbers to the woodcuts in this chapter refer to the dredging 
stations on Plutes IL., III., and IV. 
On the 18th of March, 1869, an oral communication 
was made by the Hydrographer to the Navy that the 
Lords Commissioners of the Admiralty had acceded 
to the wish of the Council of the Royal Society, and 
that H.M. Surveying-vessel ‘ Porcupine’ had been 
assigned for the service. 
The equipment of the ‘ Porcupine’ progressed rapidly 
under the direction of her commander, Captain Calver, 
with the careful superintendence in all matters bearing 
