370 Dr. Wallace on the Oak-feeding 
of the temperatures daily observed by me by means of a registering 
thermometer placed in the immediate vicinity of the tin boxes. 
March 21. Rainy, sleety .. 50 oe 40° 8. 
» 22. Minimum during night.. o. 34° 
at Wa-m. es ae io8o 
at noon, and at4 p.m... 40° 
- 23. Minimum during night.. ser Or 
at 9 a.m... ste sen 0; 
at 1 p.m. and 4 p.m. -- 46°, 48° 
» 24. Minimum during night. . se OO 
at 9a.m.._ 35 os neetO> 
atnoon.. ae oe 87 
» 25. Minimum during night.. Se as 
at 9va me ce os aes 
at noon .. 04 So. Oe 
» 26. Minimum during night.. ~~ -40° 
at 9 a.Mineec ei ASS 
atenoonw wee a 50 lS BEX 
» 27. Minimum during night.. «a A602 
at Qva.m,, 2 Ae Ap ihe 
at noon .. 50 ss 04° 
During the rise in temperature, it was found that the porch was 
cooler than under the north wall; therefore both tin boxes were 
moved to the porch. 
March 28. At 9 a.m. oie sts 20 ABS, 200 ae 
At noon .. ae ae Se eOAS Oo 
» 29. Minimum during night... eg eh 
at 9" ass eres 5 eo Oe 
at midday .. as lie 
» 380.-Minimum during night .. 202 
at midday .. 34 So Oe 
at 5 p.m. .. o. <6 2G" 
under the north wall.. 58° 
» 931. Minimum during night.. SO 
at 9am. .. os o 290° 
at midday .. ie se 290° 
April 1, Minimum during night. . se t6e 
atv9 acme) a. an ~- 90° 
ata! p.m) ew es oe 48° 
