Jouy—On the Radium-Content of Deep-Sea Sediments. 291 
Globigerina Ooze. Chall. Station, 338. Lat. 21° 13’ S., long. 
14° 2’ W. 1990 fathoms. (Middle of South Atlantic.) 
(1) On 25 grams by method B (soluble part 22°25 grams). 
Radium in grams per gram 6°4 x 10°". 
(2) Same; on fusing insoluble part and adding to acid 
extract. 
Radium in grams per gram 6-7 x 10-¥. 
Globigerina Ooze. Chall. Station, 296. Lat. 38° 6’S., long. 88° 2’ W. 
1825 fathoms. (Pacific Ocean, west of S. America.) 
On 10 grams by method A (soluble part 9:44 grams). 
Radium in grams per gram 7:4 x 107. 
Globigerina Ooze. Albatross Station, 4739. Lat. 22° 11°LS., 
long. 133° 21’ W. 2042 fathoms. (Central Pacific.) 
(1) On 5°3 grams by method E. 
Radium in grams per gram of whole sample 8:0 x 10°”. 
(2) On 7-1 grams by method D (soluble part 6-815 grams). 
Radium in grams per gram of whole sample 7:1 x 10-”. 
Red Clay. Chall. Station 5. Lat. 24° 20’ N., long. 24° 28’ W. 
2740 fathoms. (N. Atlantic, off coast of Africa.) 
(1) On 20 grams, method A (14°5 grams soluble). 
Radium in grams per gram 15°4 x 10-”. 
(2) On 10 grams of the first to settle from about 30 grams 
suspended in distilled water ; by method A. 
Radium in grams per gram 13:0 x 10”. 
(3) On 10 grams of the last to settle from the 30 grams ; 
by method A. 
Radium in grams per gram, 28°0 x 10-. 
(4) On 7 grams by method A, but all in one acid solution ; 
some precipitate left. 
Radium in grams per gram 13°9 x 10-”, 
Red Clay. Chall. Station, 276. Lat. 13° 28’S., long. 149° 30’ W. 
2350 fathoms. (Central Pacific, near region of Radiolarian 
Ooze, see under.) 
(1) On 8°42 grams by method C. (Some precipitate and 
undecomposed particles remained. ) 
Radium in grams per gram 36°9 x 107", 
