1922] EVANS—GERMINATION 219 
TABLE V 
WASHINGTON SEEDS, COLLECTED 1915, UNTREATED 
Qw at certain percentage germination* 
Temperature 
interval (° C.) 
2 8 Io 12 15 
EEO iA AG ees cs oa ss 8.173 10.32 Ws Aree yeas 5.1 
SM es Te co ae panied seks 2.40 ay dora ears Sah et Page 2.89 
Bee BO gh 6 a oh ce bes ve ae eles 1.40 Oo ae Denar aga ce 1.38 
eile! ©” Fare ara ences Sato ue" O.T028 ier eee eee ese cpe ve iets aes 
S450 40 ie ee ee ae ae T.35 Tos aoe es 17 
Re h0 ek ee 2.57 .86 1.79 PiSa Vevcas ce eae 
* Nog tion at 8°-ro0° in 168 hours. 
TABLE VI 
WASHINGTON SEEDS, COLLECTED 1915, TREATED WITH H,SO, THREE MINUTES 
Qyw at certain percentage germination* 
Temperature 
interval (° C.) 
Io 20 30 40 5° 58 
El .Q HUA AS ee ork. 577 5.97 5.66 g.15 1.86 I.0 
E445 28.8 ss 3.82 3.40 3-30 4.05 4.52 5-17 
Be iR SOAS et ic 1.95 1.84 I.70 1.87 1.52 1.47 
Ole Ari Sl ee ek 2.36 ¥.37 +21 E235 iis 1.08 
MEO AG Bl 1,72 2.26 2.20 $02 1 a a 
044573082 ee oe 2.36 2.21 2.14 eg ge Fe 
HAS 20 Or ie es 2.56 2.42 1.98 000 oo ie aes 
* Only 2 per cent germination at 8°-10° in 84 hours. 
TABLE VII 
WASHINGTON SEEDS, COLLECTED I915, GROUND WITH SAND FOUR WEEKS 
Qrze at certain percentage germination* 
‘Temperature 
interval (° C.) 
16 20 30 36 40 5° 54 
TL.9 —14.45 9.07 8.84 8.09 O98 fe eee 
ROR OS. 7g su oles ack cada ws he coe os BOS oie, Ci cleceses Coble Cian 
ST P8T Ga oi a ee 1.18 1.59 ¥.75 I.Q1 
14.45-37.6...7..) 2.16 2.10 2.03 21ONG bo es ies eee a 
* 8 per cent germination 8°-10° in 156 hours. 
