418 
PROF. LOUIS VESSOT KING ON THE CONVECTION OF 
Table IV. 
Specimen Observation Sheet , October 28, 1912. 
Air temperature, 15° • 3 C. Relative humidity, 55 per cent. 
Wire No. 10. Diameter, 0-00283 cm. Length between potential terminals, 3'64 cm. 
Total length, 4-6 cm. Resistance per unit length at 17° C., 1 -852 ohms. 
2ttL = 337 cm. 
(1-s) = -912 
T = 6 • 64 sec. 
2 ttL = 337 cm. 
(1-s) = -912 
2ttL = 1660 cm. 
(1-s) = -947 
T = 4 - 83 sec. 
27rL = 1660 cm. 
(1 -s) = -947 
T = 3-77 sec. 
2 ttL - 1660 cm. 
(1-s) = -947 
T = 2 - 41 sec. 
2?rL = 1660 cm. 
(1 -s) = -947 
T = 1-80 sec. 
2 ttL = 1660 cm. 
(1-s) = -947 
Constants 
in the formula (*) 
17 
1-398 
1-727 
2-00 
2-37 
2-60 
2-965 
degrees C. 
162° 
272 0 
366 0 
499° 
584° 
724° 
~ 
1-400 
1-730 
2-010 
2-39 
2-63 
2-98 
ns 
2-59 
3-20 
3-72 
4-43 
4-87 
5-52 
V, = 18-72 
V = 17-1 
— 
•200 
•226 
•260 
•280 
•296 
v /V = 4-13 
— 
■128 
■190 
■300 
■382 
■486 
V r = 50-8 
V = 46-3 
— 
•228 
•256 
•288 
•306 
•328 
S /V = 6; 80 
— 
■166 
■244 
■394 
'456 
■597 
. V, = 182-7 
V = 173-0 
•171 
•284 
•314 
•349 
•370 
•392 
N /V = 13-13 
■0751 
■258 
•367 
■540 
■668 
•851 
V, = 342 
V = 324 
•190 
•314 
•348 
■388 
•410 
•432 
JV = 18-0 
■0939 
•316 
■451 
■668 
•819 
1-035 
V,. = 441 
V = 417 
•201 
•328 
•362 
•408 
•427 
•451 
v/V = 20-4 
■1051 
■345 
•488 
■740 
■890 
1-126 
V, = 688 
V = 650 
■ 222 
•358 
•396 
•440 
•460 
•485 
JV = 25-47 
■128 
■411 
•583 
■859 
1-030 
1-305 
V, = 922 
V = 871 
(•234)0 
•380 
•420 
•462 
•489 
•515 
JV = 29-5 
(■1422) 
•463 
■657 
■944 
1-163 
1-470 
B and C 
B = • 00425 
•01292 
•0181 
0256 
•0308 
-0384 
yv+c 
C = 0182 
081 
123 
•205 
•257 
•338 
e line of closest fit. 
(*) Owing to an interruption in the series of readings the Telocity corresponding to this observation was V = 856 cm./sec. 
