- 
, 3 5 9 ‘ 
= ~ 
120 | ASSEMBLY 
for the day, we can add together these daily averages to obtain the 
following: 
Sums of temperatures 306° 849° 400° 453° 505° 556° 680¢ 
No, of days involved. 5.875 6.708 7.708 8.708 9.708 10.625 11.708 
Per cent of germination at the various sums of temperatures for: 
306° 349° 400° 453° 505° 556° 630° 
Es itth @ SRS ees aT RAPER PRAIA RE BAO 4! 57 86 100 
Reps Rew est ac treo Seta) tna vs Nake bee ie So he 50 74 93 100 
MATTER, oes aS occ 0 Skeet OSE ae ae oe bee eee 14 £34" -=65 ity 
Rta eee 2s ane Sop are Fy ea AE RS, ry ieee O © 84-80" (O25 ee 
PAIEBGLA rks ok Be tihas Veble eaten Soc e Cnet ate Ok Ta) 0 16 382 92 100 
On December 19 at 9 a. m., another trial was commenced with 
the same seed, additional precautions having been taken to secure a 
lower temperature, and twenty-five seed each of the varieties being 
used. A standard Centigrade thermometer, graduated to fifths was 
used, and the degrees reduced by calculation to the Fahrenheit scale. 
Temperature readings were taken, with but few exceptions, on the 
even hour, from 7 A. mM. to 11 P. M. 
No. of Average Extreme Range of 
DATE. observations, temp. temperatures, temp. 
Deg. Deg. Deg 
December 19........ 14 - 49.6 48.5-50.5 2.0 
December 20........ 16 47.6 46.0-48.5 2.5 
December 21........ ib 47.5 45.3-49.2 3.9 
December 22........ 16 48.7 46.7-50.7 4.0 
December 28........ 17 48.8 48.5-49.6 » Lop | 
December 24........ 17 48.7 47.8-50.0 2.2 
December 25.... ... 16 47.4 46.2-48.5 2.3 
December 26........ 17 47.2 46.2-47.6 1.4 
December 27.... ... 17 AT.7 46.0-49.4 3.4 
December 28 ....... 16 47.2 46.0-50.0 4.0 
December 29.... ... 7 47.8 47.1-48.9 1.8 
December 30........ 17 47.6 46.4—49.4 3.0 
December 81........ 17 48.8 47.8-50.7 2.9 
RRNA VSL Suse's ia ep tke 16 47.2 46.7-49.1 ; 2.4 
ANUS ue eat ses os 16 - 47,3 44,7-49.2 4.5 
JANUSEY Saos ek. a Ay 47.6 45.3-50.0 4.7 
PANUGT YE 5 caleige< »s 16 48.8 46.4-50.0 3.6 
WARDETYO0 Sos cre wnt 3 48.6 48, 2-49.6 1.4 
Interpolating the observations for the missing hours, we can esti- 
mate the temperature for each. twenty-four hours of the trial, as 
below : 
Average Extreme Variation x 
temp. temperatures in temp. 
Deg. Deg. Deg. 
ist 24 hours.......: 48.8 46.0-50.5 4.5 
DAs e+ ROUTH. § o » so:0t 47.2 45.3-48.8 3.2 
3d 24 hours........ 47.8 45,3-49.2 3.9 
