SUMMAEY OF RESULTS. 
869 
Density at 60° F.: — 
Station 221. 
Surface, 
1-02624 
100 fathoms, 
1-02625 
10 fathoms. 
1-02596 
200 „ . . 
1-02574 
20 „ 
1-02602 
300 „ 
1-02562 
50 „ 
1-02616 
350 
1-02565 
Depth, 2650 fathoms; deposit, Red Clay, containing only a 
trace of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 5.45 A. M. got up steam, shortened and furled sails, and proceeded under steam. 
At 6.30 A.M. sounded in 2650 fathoms. At 10 a.m. obtained serial temperatures down 
to 1525 fathoms. At 12.30 p.m. completed observations and made all plain sail. 
Distance at noon from Guam Island, 789 miles. Made good 56 miles. Amount of 
current 14 miles, direction S. 82° W. 
Surface Organisms. — The following species are recorded from the surface in the Organisms prom 
vicinity of this Station : — Surface-Nets. 
Radiolaria (Haeckel, Zool. pt. 40). 
Psilomelissa galeata, Haeckel. 
Sethoconus trochus, Haeckel. 
Dictyomitra macilenta, Haeckel. 
ScHizoPODA (Sars, Zool. pt. 37). 
Eujpliausia 'pellucida, Dana. 
Macrura (Spence Bate, Zool. pt. 52). 
Mastigopus dorsispinalis, n.sp. 
Mastigopus sp. (?). 
Elaphocaris sp. (?) ( = Zoea of 
Sergestes). 
Cephalopoda (Hoyle, Zool. pt. 44). 
Ommastrephes oualaniensis (Lesson). 
Fishes (Gunther, Zool. pt. 78). 
P senes cyanophrys, C.V. 
In addition, the following are recorded in the note-books (March 13 to 15) : — 
Peridinium (two species), Pyrocystis, Ethmodiscus and other Diatoms {Planhtoniella), 
Globigerina, Orbulina, Medusae, Diphyes and other Siphonophorae, Cydippe, 
Holothurian larvae, Sagitta, Alciopa, Planarian and small green larvae, Calanus, 
Copilia, Saphirina, Corycxus, Pontella plumata, Hyperids, Oxycephalus, Phronimids, 
Lucifer, Sergestes, Amphion (?), Zoeae, Atlanta, Macgillivraya, Pneumonoderma, 
Theceurybia [ = Halopsyche\, Hyalsea [ = Cavolinid], Styliola, and other Pteropods, 
Octopus (2^ inches in length) and another small Cephalopod, Appendicidaria, Doliolum, 
Salpa, Percoid fish (2 inches in length) and other small fishes. On the 13 th a male 
shark [Carcharias lamia), 5 feet in length, was caught ; it had nothing in its stomach. 
The white corpuscles in the blood of this shark were under observation for several hours, 
and exhibited active amoeboid movements. On the 14th two sharks, and one or two 
(summary op results chall. exp. — 1893.) 110 
