: 
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1893.]  Jnfluence of Anesthetics on Piant Transpiration. 63 
be made with the same plant at one sitting, and since the 
period of constant temperature and illumination during the 
day is short, I could not obtain such marked results as I could 
have obtained with longer periods of time. Also, the jars 
used were larger than the bell jars used in the second series 
of experiments; hence the effects of the anzsthetics did not 
appear as quickly, nor were the results so marked 
4. Fuchsia sp.?; small, five leaves, small roots, no flowers. 
: Tem. |Tem. |T'em ye cette Time in d quired to 
Time} Color. | of of | water or evaporate 5 ™m of water Progress. 
j lig.°Cjair°C.] °C, |normal column. 
3.00 White | 23.5 | 24 2 Normal|15, 16, 15, 16, 16, 15, as 15, Ether iutr’d. 
3:04 dif. 1. 23.5 | 24 22 Ether. |15, $5, TH 26, 16, eke After 6 Pieciation 
3:10 | 23.5 | 24 | 22 (|Ether. |17, 18, 18, 18, 19, 18, get 19, 18] ether oved. 
3:16 23.5 | 24 22 Normial/|15, 16, 15, 15, 16, 16, 16, 15, rola min 
3:19 Dark. 23 24 22+ |Normaljr6, 15, 15, 16, 15, 16, 16, 13, 16;Dark. 
S34 : 23 24 22.25 |Normal = 18, 19, 18, 18, 19, 18, 18, r9!Aft. 15m. et. in’d. 
3:3 z 23 24 22.25 |Kther. 18, 18, 18, 19, 19, 18, r19/Aft. ann. eth.rem. 
3:42 a 23 24 22.25 |Bther. re ZI, "22, 21, 22, 21, 22 wis \4 min 
349 23 a4t | 22.5 (Ether. |18, 19, 18, 18, 19, 18, 19, 18, 18 End. 
5. Solanum tuberosum, small plant, strong roots, no tubers. 
‘ Tem. |Tem. |Tem Sibacleiae Time in seconds required to 
Time} Color, of, of _| water evaporate 5 ™m of water Progress. 
lig.°Clair°C.| °C. normal column. 
11:20 i 
pos ee _ 22 20 |Normal|ro, 9, 10, 10, 9, 10, 9, 10, 10, apy pg ge 
oe ote o74 z0 |Ether. |10, 9, 10, 10, 10, 9, 9, 10, 9, ro|After 8 minutes 
11:35 MS a — 20 |Ether. |1 ies ts Pian ge 2 oe se re ear removed 
11:37 a me 0 |Normaliro, 9, 10, 10, 9, 9, 10, 9,9, 10, ro, Amyl nit. intr’d 
1141 ve ~ z 20+|Amyl n|ro, 9, ro, 9, 10, ae 10, 10, g|After 3 minutes 
Pn : = + Amyl nj13, 13, 12, 13, 13, 12, 3 amyln. removed. 
1148 | Dark 22 20 |Normal|r1o, 9, 9, 10, 10, 10 10, 9, 
12 21.5} 22 20 |Normaljro, g, 10, 9, 10, 10, 9, 10, 10, 9}Dar 
205 os a 20 |Normal|iz, 12, 12, 13, 1 213,12 Ohi ris minutes 
12:11 ve “ im 20 jAmylnir12, 12, 12, 13,13, 12, 13, = amyl nit. intr’d. 
12:16 Be rd 20 j|Amylni/14, 13, 13, 14, 14,15, 14, 14/Af.5:n.am’lrem. 
22 20 |Normal|12, 13, 12, 13, 13, 12, 13, a 
Same in all cases, 
be : 
r of similar results obtained.- Variation in temperature, 
ete. ¢ 
has aused me to repeat many of the experiments before I 
big satisfactory results. 
linc 
ells 
orange vin ih Sgr neni a trace of green, all the yellow, 
the experi et make the series complete I also repeated 
ments with white light and in darkness. 
