328 Bappicker— On the Changes of the Radiation of Heat from the Moon. 
TABLE III. 
I II II IV. Vv VI 
Die | € Gy if log oa Weight 
| Ce | 
| March 24 — 74 20 91-2 104°7 9°9401 20 
Nov. 28 — 54 18 170-2 169°8 0:0006 15 
Noy. 30 — 26 51 231:0 293:0 9:8967 1 
| Oct 5 — 12 20 296°8 382-4 8899 1:5 
| March 29 , . - 8 8 3386:1 401-0 9233 15 
Nov. Des te = (3 ay || 368°2 404°6 “9590 20 
Oct. 5 +14 17 290-4 348°1 9213 15 
Oct 6 +28 10 221-9 286°5 8888 6 
9. By assigning the weights from Table II., which are here repeated in 
Column VI., to the numbers of which Column VY. contains the logarithms, we 
obtain for the logarithm of the most probable factor for reducing the values for 
the lunar radiant heat of 1873 to those observed by me—9:94898, and have, 
therefore, by multiplying the number for full moon taken from the Phase Table, 
viz. 403°3, by the above factor, as the reading which I most probably should have 
observed during full moon. 
© putt Moon = 358°6 SE 0:0000184. 
10. Having regard to the full moon value thus obtained, the following points, 
which are brought out by the eclipse-observations, deserve special mention :— 
a. After the last contact with the penumbra the heat-effect is only 85-3 per 
cent. of what it would have been without the eclipse, and thirty-eight minutes 
after the last contact with the penumbra it is still only 86°8 per cent. of the full 
moon value. . 
b. The.decrease of heat before the total phase takes place much more rapidly 
in the same time than the increase after it. For from before the first contact 
with the penumbra till 54" before the beginning of the total phase the decrease 
amounts to 358-6—12:0 or 346-6 divisions of the scale; while during the same 
period after the eclipse the increase is only 306°1-3-7 = 302-4 divisions. 
