.250 Ethel McLennan: Gaseous Presswre. 



Temp. 1 hours' growth 



C. Time read. mm. mm. 



(n) - 12 - 9.5 - 1 



10 5 - 1.35 - .224 



(o) 13 - 10.5 - 1.3 



12.5 - 2.05 - .226 

 p) 13 12.5 2 



12.5 - 2.75 - .224 



Atmospheric Pkessurk + 45 lbs. 



Seedling in Air. 



Temp. l hours' grow tii 



°C. Time read. mm. hum. 



(a) - 20.5 -11.5 - 1 



12.5 - 2.1 - .70 



(I,) - 20.5 - 12.5 2 



1.5 - 3 - .64 



(c) - 20 - 1.5 3 



1.50 - 3 85 - .70 



Atmospheric Pressure + 45 lbs. 



Temp. l hours' growth 



( . Time read. mm. mm. 



(a) 20 - 2 - 1 



3 - 2.05 - .07 



(b) - l'O - 3 - 2.05 



5.55 5.25 - .07 



(c) - 1* 



10. 15 - gr. off scale* - 

 * Pressure fallen 35 lbs. 



(d) - 20 - 10.30 - 1 



11.30 - 1.09 - .057 



(e) 20 - 11.30 1.2 



12.30 - 1.25 - .032 



(f) 20 - 12.30 1.2 



1.40 - 1.42 - .098 



■(g) 20 1.40 - 1.4 



2.40 - 1.0 .128 



(h) 21 - 2.45 - 1.0 



3.45 1.S5 - .16 



(i) - 21 3.45 - 1.8 



4.45 - 2.15 - .10 

 (j) 12f 4.50 1 



10.10 4.45* - .08 



t Minimum temperature. * Pressure fallen to 28 lbs. 





