A, D. Bache on Gulf Stream Explorations. 201 
another; and the water beyond the axis a third form, while in 
the strait of Florida a fourth was developed. It would be nat- 
ural to expect in the course of many years’ explorations by dif- 
_ ferent individuals with different instruments not even of the 
= 
Fe 
=] 
o 
° 
= 
fae) 
<4 
o 
4 
Ss 
i} 
77) 
oO 
i.e) 
=) 
Eh 
3 
5 
oO 
Qu 
er 
i 
La*) 
Eh 
Ww 
er 
ie) 
oO 
j=) 
Qo. 
c 
2 
° 
| 
a) 
S 
jes) 
a. 
a 
€ con- 
stancy of the phenomena. It is not difficult, having the curve 
representing the temperatures at any position from the surface to 
the depth of several hundred fathoms to determine from the tem- 
ence 
& 
=. 
= 
a 
— 
et 
> 
a] 
=) 
°o 
= 
oO 
ss 
| 
fae 
Mt 
ct, 
_ 
pS] 
=] 
ss 
oe 
So 
@ 
= 
° 
= 
= 
S 
a>] 
4 
Dd 
wn” 
ras) 
Oo 
4 
ae 
° 
=] 
A 
ie and is plainly shown in all the sections with more or less 
uctness, In the Sombrero Key section (No. 8) it is strongly 
marked at depths ranging from seventy to a hundred fathoms, 
While in all the sections the warm water at the surface overflows 
the Straits of Florida. The figures at the top show the distances 
of the cold wall from the shore in the different sections, and the 
numbers on the left the degrees of tempera he curves are 
Ping udinal Seetions.—It has been found very difficult to de- 
tan any satisfactory law for the decrease of surface tempera- 
we along the axis of the Stream owing to the variability of the 
a4 mperature of the water of the regions from whence the Gulf 
pi “am is supplied. Two modes of investigating the subject 
ND SERIES, Vor. XXIX, No. 96.—MARCH, 1860. 
26 
