PRELIMINARY REPORT. 99 



ITawaiian Inlands, fifteen ypecies of Foraniinifera, three of whicli are pelagic, 

 and eight species of Radiolarians are recorded from Station 256, lat. 30 ' 22' N., 

 long. 154" 50' W., in 2950 fathoms, red chiy, and in forty fathoms, off the 

 Honolulu I'eef, eighty-two species of Foraininifera are recorded in the de- 

 posit, only 3 per cent of which is made np of seven pelagic species. 



The line from Yokohama east to Station 253, lat. 38° 09' N., long. 

 156" 25' W., and thence south to the Hawaiian Islands, is marked for the 

 great number of Eadiolarians recorded in the deposits of the different 

 stations, as well as for the number of surface Radiolarians. It will be 

 noticed that the above line follows the general trend eastward of the 

 Japanese current and that the fauna of the bottom appears to be far 

 more abundant in the track of this great oceanic current tlian in the line 

 running south of Japan, where no great oceanic currents occur. 



On the "Challenger" line, Hawaii to Tahiti, which corresponds more to 

 the "Albatross" line, only two of the soundings (Station 270, lat. 2" 34' N., 

 long. 149" 09' W., and 271, lat. 0° 33' S., long. 151° 34' W.) indicate Globi- 

 gerina ooze, and both of them are far beyond the depth at which such 

 deposits are usually met with. The "Albatross" had a similar experience 

 at Stations 14, lat. 6° 41' N., long. 137° W., in 2776 fathoms; 16, lat. 2° 38' N., 

 long. 137° 10' W. ; 11, lat. 0° 50' N., long. 137 54' W., in 2440 and 2463 

 fathoms. The above-mentioned soundings of the "Challenger" were in 

 2925 .and 2425 fathoms, and both in the belt of the equatorial current. 

 With the exception of the stations nearest the Hawaiian Islands and 

 Tahiti, which showed a deposit of volcanic mud (Stations 202, 263, and 

 278), the other stations on that line were all red clay, with little or no 

 trace of carbonate of lime. Though Station 269, lat. 5° 54' N., long. 

 147° 02' W., in 2550 fathoms, approaching Stations 270, lat. 2° 34' N., long. 

 149° 09' W., and 271, lat 0° 33' S., long. 151° 34' W., contained 20 per cent 

 of carbonate of lime, made up of more than thirty species of Forami- 

 nifera, seven of which were pelagic species, composing about 85 per cent 

 of the carbonate of lime ; the rest of the depo.sit consisting of over sixty 

 species of Radiolarians and over eighty species of Diatoms. 



Of the Globigerina ooze Stations No. 270, 2925 fathoms, contained 71.47 

 per cent of carbonate of lime, and 271, in 2425 fatlioms, over 80 per cent; 



