TABLE I (Continuation). 
Blackening for 
Numer of Spinchenine Blackening for eee PEetenine fhe shale 
the plate. for ultra-red. visible spectr. for yellow. | for green. spectrum. 
| 
l a 0.0013 0.0110 / 0.0088 0.0129 0.0025 
ie. _ 0.0042 0.0206 0.0158 0.0206 0.00665 
l y | 0.0111 0.0361 0.0267 0.0367 0.0130 
10 | 0.0204 0.0542 — 0.0427 0.0567 0.0238 
| 
TABLE Im (Glycin), 
aber ot | | Ratio of ee! | Ratio of blackening Ratio of blackening 
rete: | for ultra-red and |‘ for yellow and for green and m.g. 
pases \m.g. Ag per 100 c.m.2.m.g. Ag per 100 c.m.2, Ag per 100 c.m.2. 
2.647 _ eA: ae 2.363 — 
19 A sag 0.181 meel 0.151 oere 0.162 
2.31 | 2.183 2.308 _. 
19 B TW 0.163 | 14.95 = 0.153 14.05 = 0.162 
2.05 1.756 1.879 
18 A mee 0.184 | nz = 0.157 TE 0.168 
2.080 ir 7 ax 1.929 
18 B Ts = 0.170 TAG 0.152 at ate 0.166 
1.428 | 120 1.280 _ 
17 A n= 0.142 | bos = 0.122 0.05 = 0127 
1.408 1.208 1.219. 
17 B | ES 0.149 Baj = 0.127 Ea 0.135 
| 0.859 0.731 0: 750... 
16 A | aia OnI25 6ikeT 0.107 TUR 0.109 
16 B 0.874 0.750 0.767 ') 
Wes 02220 : 0.195 0.193 
15 A | 2.20 = 0.100 299 — 0.085 299 7 0.084 
. [0258 0.203 0.199 _ 
15 B | 1095 = 0.114 905 = 0.099 nar 0.097 
0.1163 0.106 0.102 _ 
14 0.936 ~ 0.124 0.936 — 0.113 0.036 — 0.109 
0.090 0.078 0.076 
13 | 0.855. = 0.105 0.855 — 0.091 0.855 0.089 
| 0.0218 _ 0.0224 _ 0.0212 
12 rc cr = 0.066 0.330 > 0.068 0.330 0.064 
0.0203 0 0196 0.0187 
11 en ek hage. é 
mage OP pas ee yee 
400105 3 Greil | 0.673 
Collargol. | B 0.0015 RT 0.031 | Bb 0.110 
1) The estimation of silver failed. 
Utrecht, Aug. 1920. Institute for Theoretical Physics. 
