26 Richard H. Boerker 
Cueck Som Moisture SAMPLES 11/14/14 
Depth 5.0 cm. 
Name of Culture Moisture Per Cent, 
Open Mighty Mie oe ae ead Oo eis eae rae eens ae ro en ea 27.9 
AS alatone Meee pak Sea MeN) Nat Dear ema Nrgr ee USCS mtr ota a 24.1 
1BYay- baal Py eae ie Manna MeCN ATE GlMler te Ser ohsansn! a) lo,6:6%6 6 Sole B 277, 
ID Yess ahiasioyl Beye ANIA RI Ere Ei Men nee iy Realy umeate Ss aA city ot ty 6 28.2 
WMkerbibion Glee Gooocscuesconnsgbccoososonosoosmodoao er 28.5 
Shatlowiisoihvee no) ou as canyn Stern SOR ee EC eee 31.4 
These figures, obtained after more than two weeks of daily water- 
ing, pretty well indicate the small amount of variation in moisture 
content which results in a number of cultures under the same 
conditions. 
Light was controlled in the greenhouse by means of shade 
tents. Thé east bench of the room was divided into three parts 
and the portions at the ends of the bench were covered with 
cheese cloth. The central compartment of the three was not used 
on account of the shading influence of the tent to the south of it. 
(See page 33.) The tent intended to develop medium shade was 
made of a medium grade of cheese cloth, while the tent intended 
for the dense shade was constructed of a double layer of heavy 
cheese cloth. The light values developed in these tents and in the 
full light of the greenhouse as determined by a Clements photom- 
eter are given below: 
TABLE OF LIGHT VALUES 
‘ Open Medium Dense Number 
Date Time Light Shade Shade Readings Weather 
1/21/14 Il:30 A 0.4250 OSL FT/S dn aon 5 Clear 
11/27/14 12:00 A 0.4040 0.1467 0.0216 2 Clear 
AV CT AS Caen | cme 0.4145 0.1621 OLO2ZTO ih hose alert 
These values are based upon full sunlight just outside of the 
greenhouse. These tables indicate that full greenhouse light is 
approximately ™% of full daylight and that the medium and dense 
shade tents have values approximately % and %po of full daylight 
respectively. 
