- limey. 
Phil .Trans. 1880 . Plate 81 . 
MAP OF THE INFRA-RED END OF THE SOLAR SPECTRUM. 
■As nvea.sU-.reoL from. Photographs tafeen, by the aid, of Diffraction. Gratings. 
1 23 4 56780 
1 2 3 4* ‘ *6 7 8 9 
1234.‘?6789 
1 234^6789 
1 2345e 78 9 
12 3 4 
3 8 7 8 9 
1 23 4^ 6 7 8 9 
l234-'?678» 
2 
4 $ 6 _ 7 8 9 
i ht Irm 1 uujimlim 1 11 lH lutI'd aim ibm 
n,uli i n lmifi i nh n i n i u In i ti 11 n 1 n i 1 1 1 i it 
t rrlm 11111111 rnTirnTm rl mrl 11 nil 1 1 uii 
iimIiii .hmliiiilnnl iiilimlim tt 
li ii xh nil tItiii i i i ih a 
n iiiii ml ml m 
mill ilmil [ in 
1111 1 1111 1 1111 1 1111 1 1111 1 1111 1 ii 11 1 1111 1 11 h in 11 
null im m m m bm ni Imiiuii 
III! 
cm an 
mi m: mb bL nnb 
7 
123456789 
2d 
1 2 3 4 6 7 A 9 
29 
1 2 3 4 5 6 7 
8 9 
30 
1 2 3 4-v 
3 
6 7 8 9 
: 
123456789 
2 3 
123 4 ? 6 7 8 9 
3 3 
123458789 
4 o 
1234^ 6789 
5 36 
1 234 v* 67 89 
1 1 1 1. 
„L„.. .... .... 
L i r 
—i 
1 1 - 1 -'-- 1 1 1 1- 
A A... A, r„L- i -J , , , 7 , , 7 ■ 
1 Mil HI 
.11 
urn 
ULU 1111 
111 11 L IH 
1U LLLL 1 Till 1 M l 
mm 
11 T 1 
r m m m t 
TTTTTTT 
imt Ttri 11 im 
mi inii 
7m 
m 
ii im nrr im nil nr 
1 1 1 1 1 1 1 1 1 1 1 1 1 II 1 
ttttttiiiiii iiiiimii. 
in, m 
1111 
Tun rnTm rrm 
TTTTII TTTTTTT 
TTTTTT 
m il mi 1 imliinlinini n 
111 ! 1 1II llllllt 11 Iflnn 1 1111 1 1111 1 111 ll 11 ll.lJ-LLi. 
_ 
— 
1 
i 
1 
- 1 — 
i— 
At this point there, is a continuous specbum 
ejtte.nding om for as wos/e, length 10150 at 
which point the djJfroxthon Photographs ends, 
but the Photographs of the, prismatic spectrum 
show the continuous spectrum cos far as 
woo/e length 12,000. 
-1 
