1893.]  Jnfluence of Anesthetics on Plant Transpiration. 67 
During the first period of exposure the ether had reduced 
transpiration and hence reduced the loss of moisture. 
In the second period of exposure the ether had killed all 
the protoplasm and hence evaporation took place and not 
transpiration, which accounts for the increased loss in 
weight. 
2. Time of first exposure, } hour. 
Condition Anaesthetic |Weight in mg.|Weight in mg. 
i ed before after Loss in mg. |Loss per ct. 
ight. normal. exposure. exposure. 
Meet] oe |g ee. 
si Ni 1 S i 
| orma | 75 70 5 6.6 
Conclusion: Ether retards transpiration in diffused light. 
3. Time of exposure, 1} hours. 
ED FE Pe ea ee 
Diffused light. 
Diffused light, RROT creeks sec 
Normal.... 
223 13 5-5 
191 12 5.9 
Conclusion: Ether retards transpiration in diffused light. 
4. Time, 3 hour. 
a es a 
Diffused tight.\Eth | 
ight... Ether............... 
Daused light. Normal so = i 3 52 
Dathenes eee hers ech cat 47 et 2 2 
rss Ofmal esc 32 35 bs 47 
Sa i 
me leaflets weighed after 3 hours. 
Diffused 1j : 
- ght../Ethe 
Di i Pestistcciuns 
Danae light. Normal evict me re | 12 | ar 
Se ei a PT vesavets ais. ; 3 t2 
Darkness... Normal......;..... ie 2 | 6 | #3 
6 18.7 
Conclusion: 
Fr: Ether retards transpiration in diffused light. 
* ‘tme of exposure, 35 hours. 
Diffused ligh 
t, 
ffused light, Ether ... 
Di 
Dark Norma 67 Ss 
Packer 75 2 
Da toad 84 7 27 Sy 
93 74 nif 20.43 
Conclusi 3 
“lusion: Owj 
had ing to the long period of exposure the ether 
opped 
To : Se 
Oration j Protoplasmic activities, and h i 
C in b ence increased evap- 
oth cases, b : 
the dark were killed ee Be Se Pera Hooliets 
