oon 
BOTANICAL GAZETTE 
[may 
condition for plant use. In potassium content they are deficient; 
potassium salts are generally added in an alkaline form in order to 
produce crops. In nitrogenous materials peat soils are unusually 
TABLE I 
TRANSPIRATION DATA FOR SOLUTIONS INOCULATED WITH PURE CULTURES OF 
BOG BACTERIA 
TRANSPIRATION IN GRAMS CoMPARA- 
Serms III BACTERIA yg ed 
sth day | roth day | rsth day Total RATION 
Control 9.33 42.92 | 66.85 | 119.10 | 100 
B. 20 8.8 41.30 44.06 94.21 79.10 
Bs 22 8.30 BO 515s A? G02 00.+35 Fo 75-0 
B. 8.55 31.80 | 42.80} 83.15 | 69.81 
8 “ge 30.90 | 43-95 | 82.00] 68.85 
Co4 7.60 29.70 | 44.40] 81.70 | 68.59 
Duplicate 
series.... | Control 8.80 44.50 | 66.83 | 120.13 
B. 20 8.40 34-25 | 45.98 | 88.63} 73-77 
B. 22 7.05 35-40 | 46.10 | 88.55 73-72 
B..7 8.15 34.45 42.21% 84.81 70.59 
Co 8.10 30.90 | 44.25 | 83.25 | 69.30 
a 8.40 ‘38. i8 41.65 81.20} 67.59 
Atmometer. . TO2 er. | £30 Pr) 12h-er. 
TABLE II 
PERCENT- 
AGE OF 
DECREASE 
TRANSPIRATION DATA FOR SOLUTIONS INOCULATED WITH PURE CULTURES OF 
‘ : BOG BACTERIA 
TRANSPIRATION IN GRAMS 
Series VII BACTERIA 
sth day | roth day | 15th day Total 
Control 7-65 | 36.20] 36.60} 90.45 
Bog water 7.6 11.30 8.90 | 27.35 
B25 8.15 29.30 | 26.85 74.30 
Bg. w. ree £5.27 1 30.85 25.490 |. 74-42 
be oe Bie G92 1 96.08 | 20 Bet ee. ee 
B. 2 17.45. | 29.05 | 29.30 | 70.80 
B. x 6.60 | 28.95 | 24.85 | 70.40 
Bay 12.60 | 24.00 | 23:80 |. 60:50 
B.6 14.00 25.40 20.80 60.20 
B. 4 14.95 | 23.80| 20.45 | 59-20 
B. 29 Lt.60 1 35,55 15-85 | 43-00 
Atmometer.. 114 gr. | 117 gr. | 102 gr. 
CoMPARA- | ppRcENT- 
TIVE AGE OF * 
TRANSPI- DECREASE 
RATION 
00 ° 
30-79 69.21 
82.14 17-86 
81.94 | 18.06 
78 74 21.26 
78.27 | 21-73 
97.83 22.17 
66.66 33-34 
66.55 | 33-45 
65.46 | 34-54 
47-54 52.40 
Ee ae 
rich, but the nitrogen remains bound up in organic compounds _ 
vailable for the growing cultivated plants. In order to determine 
the ability of the microorganisms to convert soluble proteids este 
amido-acids and allied products of the disintegration of proteids, 
