166 ~ THE ATLANTIC. [CHAP. 1. 
CHAPTER III. 
TENERIFFE TO SOMBRERO. 
The First Deep-sea Section.—Leiosoma limicolum.—A Grove of Deep-sea Coral.— 
Poliopogon amadou.—Red Clay.—Phosphorescence.—Surface Fauna.—Blind Crus- 
taceans.—Fishes’ Nests.—The Paucity of the Higher Forms of Life—Deep-sea 
Annelids.—The Structure and Mode of Formation of Globigerina Ooze.—The Hab- 
its of the Living Globigerina.— Orbulina universa.—Pulvinulina— Coccoliths ” 
and “ Rhabdoliths.”—The Origin and Extension of the “Red Clay.” — Radiola- 
rian Ooze.—The Use of the Tow-net.—The Vertical Distribution of Temperature 
throughout the Section—Specifie Gravities. 
AprenpIx A.—Table of Temperatures observed between Teneriffe and Sombrero 
Island. 
AprenvIx B.—Table of Specific Gravities observed between Teneriffe and Sombrero 
Island. \ 
AxruoucH important observations had been taken and many 
interesting additions had been made to our knowledge of the 
fauna of the deep sea during the earlier part of the voyage, the 
regular work of the expedition can only be said to have com- 
menced with the section across the Atlantic from Teneriffe to 
Sombrero. It had taken all our time, up to our departure 
from the Canary Islands, to put the machinery into working 
order, to settle the direction and scope of the parts to be as- 
signed to the various members of the staff, and to devise among 
us a satisfactory routine of work. At Santa Cruz the old jour- 
nals were closed, and the numbering of the stations and the 
other entries were commenced afresh with some alterations, the 
result of additional experience. As this first ocean section may 
be taken as a fair sample of the occupation of our working 
days for now upward of two years, I will give a detailed ac- 
count of our proceedings, even at the risk of making this chap- 
ter somewhat technical. 
