434? Messrs. Carpenter, Jeffreys, and Thomson [Nov. 18, 



Depth in 

 Fathoms. 



Specific 

 Gravity. 



Percentage 

 of Carbonic 



Percentage 

 of Oxygen. 



Percentage 

 of Nitrogen. 



Total Per- 

 centage of 



Oxygen re- 

 quired to 

 neutralizeOr- 

 ganic matter 

 in 250 c. c. of 

 water. 



862 



1027*5 



48-23 



17-22 



34-50 



3-5 



gramme. 



•001 



800 



1027-7 



33-75 



17-79 



48-46 



2-8 



•001 



750 



1027-5 



31-92 



18*76 



49*32 



2-8 



•0012 



700 



1027-5 



31-02 



19-31 



49 66 



2-2 



•0013 



650 



1027-5 



30 00 



19-80 



50-20 



2*4 





600 



1027*5 



28-34 



20-14 



51-52 



2-4 



•0005 



550 



1027-5 



29-06 



20-70 



50-24 



2-6 



•0009 



500 



1027*5 



27*26 







2-2 



•0014 



450 



1027-5 



24-73 



22-18 



53*09 



2-8 



•0005 



400 



1027-5 



29-73 



22-71 



47-51 



2-5 



•0014 



350 



1027*3 





.... 







•0015 



300 



1027-3 





.... 





.... 



•0018 



250 



1027*3 



! . '. 









•0019 



200 



1027-3 











•0017 



50 



1027-2 



30-73 



25-23 



43-84 



2-2 



•0014 



Surface 



1027-5 













59. On the 28th we dredged in 1207 fathoms (Station 43), with a bot- 

 tom of ooze. A large Fusus of a new species (F. attenuatus, Jeffreys) 

 was brought up alive, with two or three Gephyrea, and an example each of 

 Ophiocten Krbyeri and Echinocucuniis typica. We again dredged on the 

 29th and 30th, gradually drawing in towards the coast of Ireland in 865, 

 458, 180, and 113 fathoms successively (Stations 44, 45). In 458 fathoms 

 (Station 45) we procured a broken example of Brisinga endecacnemos, 

 previously taken by Mr. Jeffreys off Valentia, and a number of interesting 

 Mollusca; and in 458 and 180 fathoms (Stations 45 and 45 a) an extra- 

 ordinary abundance of animal life, including mauy very interesting forms — 

 Dentalium abyssoru?n, Aporrhciis Serresianus, Solarium fallaciosum, Fusus 

 fenestratus, a beautiful Ophiurid, the type of a new genus allied to 

 Ophiura, remarkably large specimens of the commoner forms, Ophiothrix 

 fragilis (for example), nearly a foot and a half from tip to tip of the arms, 

 and brilliantly coloured, abundance of Caryophyllia Smithii, and of all the 

 ordinary deep-water forms of the region. About midday on Saturday, the 

 31st of July, we steamed into Queenstown. Having coaled at Haulbow- 

 line on Monday the 2nd of August, we were moored in the Abercorn basin, 

 Belfast, after a pleasant return passage up the channel, on the evening of 

 "Wednesday the 4th. 



Third Cruise. (Chart, Plate 6.) 



60. In accordance with the original Programme (§ 29), the Third Cruise 

 was devoted to the re-examination, on a more minute and extended scale, of 



