1114 
Lactic acid and iodine. 
Time of | Amount of Unchanged | 
Quality of light Volume of solution 
| exposure |iodine added iodine | 
ry ES 7 | 2 
1) Sunlight 300 0.00635 0.00519 | si ny EN 
| 
Darkness 300’ Do 0.00595 | op Leenen 
2) Sunlight | 340’ Do 0.00501 | 
| | | Do 
Darkness 34000 Do 0.00570 | 
3) Diffusedlight | 360’ | Do 0.00525 | 
| | Do 
Darkness | 360’ | Do 0.00560 
} | 
4) Diffused light | 520’ Do 0.00335 | | 
Do 
Darkness 520’ Do 0.00380 
Sodium lactate and iodine. 
1) Sunlight | 250° | 0.00635 | 0.00325 | eine “i ate 
| ; | tate and al iodine. 
Darkness |. 250 Do 0.00575 | 100 
2) Sunlight 480’ | Do | 0.00135 || a 
Darkness 480’ 4 Do 0.00295 | 
3) Diffused light | 490’ De 0.00203 | 
Darkness | 490° | Do | 0.00292 | | ae 
4) Diffused light | 560° | Do | 0.00113 | ee 
Darkness 560’ | Do 1 “Of0021573| 
So m tartarate and iodine. 
a) Sunlight 135° | 0.00635 | 0.00148 
| 50 cc. 5 © sodium tarta- 
| | No 
Darkness ' 135’ |. Do 000381 | Fo ENS ey en 
b) Sunlight 250’ | Do _ | _0.00085 | 
| Do 
Darkness 250’ | Do | 0.00213 
€) Diffusedlight | 200° | Do | 0.00272 | 
Darkness | 200 Do 0.00356 
ight | Zal 0: 
d) Diffused light | 240 | Do | 0.00132 | ae > sodium Gie 
Nashe 
rate and 5 c.c. iodine. 
Darkness | 24 | Do 0.00205 100 
