12 
CRUISE OF H.M.S. CHALLENGER. 
about 40 miles west of Vigo Bay, our first sound- 
ing was obtained at a depth of 1125 fathoms, the 
Fig. 5 
V Q) 
a 
SOUNDING AND DREDGING APPARATUS. 
Fig. 1 . Sounding machines. Fig. 2. Slip water-bottle. Fig. 3. Deep-sea thermometer. 
Fig. 4. The dredge. Fig. 5. Cup sounding lead. 
bottom being Gflobigerina ooze. After this the 
dredge was put over and lowered to the bottom > 
