Surron— Study of Evaporation from Water-Surfaces. 
(2). Temperature of Water. 
143 
pe 8a Ila. 2p. dp. 8 p. 11 TD. | 
| Oct., 658 59-2 63-9 | 683 |. 69:6 | 68-1 | 66-0 |) 
eeees 4a tcs-7), || 68.3) || ee ||) 7a. | vil) ese 
Meese (72-6) |) 67-7 roles fe ey | ee | Gal | ores 
| ui 
Herm TA<GH | vedo) | 72-2 4) 76-5) | 72-59) 76-40 747 rome 
t oO ; 
Feb., 71-0 65:7 69-2 72°9 74:0 72°8 70:9 Ss. 
Mar., 67°2 61-8 65:3 | 69:2 | 70:2 | 69:0 | 67-0 
| Mean, 70-0 64-6 68-6 72-2 ES Te 70-0 |) 
(3). Temperature of Dew-Point. 
11 p.-8 a. | 8 a.-1l1 a. | 11 a.-2 p. | 2p.-o p- | 5p.-8 p. | 8 p.—Il p. 
| Oct., 36-0 39°3 39-5 39-1 38:7 37-30 8) 
| Nov., 47-0 47-6 46°1 455 46-1 46-2 | 
| Dec., 49°7 50:2 48-7 48-1 48-5 eon 
mM 
Jan., 55-1 54-5 52°83 51:5 52°6 54°83 ; 3 
tT) 
Feb., 53-0 54°3 52:9 51:2 52:2 52:8 = 
Mar., 50-2 52:0 50°4 49:1 49°6 50-6 | | 
Mean, | 48-5 49°6 48°3 47-4 48-0 483 |y 
(4). Barometric Pressure. 
Jil p.8 a.| 8a.—ll a. |1la—2p.| 2p.—dp. | 5p.8p. | 8p.—1l p. 
Oct., 26-115 | 26-140 | 26-094 | 26-052 | 26-071 | 26-109 |) 
Nov., -097 “119 074 034 052 “082 
Dec., -046 ‘071 033 | 25-981 | 25-987 -028 , 
Jan., -058 -0S1 049 | 26002 | 26006 | 044 bs 
Feb., “080 "110 “080 041 047 "075 ca 
Mar., “117 “144 -109 -066 072 “102 
Mean, | 26°085 | 26-111 | 26-073 | 26:029 | 26-039 | 26-073 | | 
