76 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 



Station 4728, 19th January, 1905. 

 Lat. 13° 47.5' S. ; long. 114° 21.6' W. ; depth, 1055 fathoms. 



GLOBIGERINA OOZE: the material is almost entirely made up of the 

 shells of pelagic Foraminifera and their fragments, with one or two very 

 small Echinoid spines; a very few Sponge spicules, one or two Radiolaria 

 and Diatoms ; and a few angular fragments (| to | inch in diameter) of a 

 black basalt, containing abundant glassy base, and showing hardly any 

 weathering. 



Station 4732, 21st January, 1905. 

 Lat. 16° 32.5' S. ; long. 119° 59' W. ; depth, 2012 fathoms. 



GLOBIGERINA OOZE : the material is light gray, with a slight reddish 

 tinge when dried, granular and incoherent, and consists almost entirely of 

 pelagic Foraminifera and their comminuted fragments, with a few cocco- 

 liths and rhabdoliths ; a few remains of Radiolaria and Sponge spicules ; 

 and a little chestnut-brown flocculent clayey matter. 



Station 4737, 24th January, 1905. 

 Lat. 19° 57.5' S. ; long. 127° 20.3' W. ; depth, 2060 fathoms. 



GLOBIGERINA OOZE : there is a very little washed material sticking to 



the sides of the bottle, consisting chiefly of pelagic Foraminifera, with a 



few bottom-living forms (Rotalida3 and Miliolidte); a few angular fragments 



of felspar were observed. 



Unlabelled Samples. 



As already stated, twenty-nine of the bottles were unlabelled, and upon 



examination the contents were found to be as follows : — 



9, Globigerina Ooze, 4, Green Sand, 



2, Red Clay, 1, Green Mud, 



2, Radiolarian Ooze, 1, Volcanic Mud, 



8, Blue Mud, 2, Incoherent material. 



A. GLOBIGERINA OOZE. The Globigerina Ooze in three of the bottles 



was found on examination to be similar in composition, and it is possible all 



may have come from the same station. The percentage of calcium carbonate 



is about 60 or 70, and the siliceous organisms make up about 10 percent. 



Another sample, in which most of the Foraminifera shells are broken, 

 approaches the border-line of Radiolarian Ooze, since the residue is almost 

 entirely made up of Radiolaria. 



Another sample was found upon analysis to contain 38.91 per cent of 



