64 
No. No. No. Age Average 
of ot of in per cent. 
trials. varieties. seed. years. germinated. 
6 3 600 8 41 
2 1 200 9 22 
1 1 100 20 0 
2 1 200 21 3 
TT OUTRO Uo fee eee ita Sede ome 8 fi 800 0 89 
19 10 1400 1 85 
30 13 2050 2 89 
© 1 10 1400 3 89 
9 6 900 4 838 
5 2 500 5 al 
2 2 200 6 96 
5 4 400 i 74 
12 7 950 8 76 
5 8 500 9 83 
11 Et 600 10 75 
2 2 150 ig 63 
4 2 400 12 86 
3 2 800 13 44 
4 3 300 14 74 
Turnip seu ie eee ee en eet 6 3 600 0 95 
aT 8 4100 1 87 
50 19 3400 2 95 
28 12 1900 3 94 
30 Lit 2150 4 79 
6 5 600 5 67 
3 3 300 6 58 
11 6 1000 7 56 
2 1 200 8 65 
2 2 100 12 49 
OV CCHS rae eB eet ae ere alee 2 1 200 i 97 
WV ATOTOTOSS tere Ne ote ie see eae eran 1 1 100 2 27 
1 1 100 8 0 
MOV LG eh eee ale aca et he oot a rete 3 3 300 0 100 
MVVLEIR TL HITTONI pensar se ee a eat 1 1 100 1 30 
2 1 260 3 4 
WOTHnVOOU Le tee oes Mee ce ate 2 1 200 2 18 
BY Gif LIOCUSt eee eae. eee eee 2 1 100 10 42 
2 1 100 27 12 
A Dies, Dougiassll (2) 2. Sen ent eee 2 1 200 2 44 
INigtdaess os Some nearness 2 tL 200 2 52 
PPADUM INSP Diss oy Ue ees Cc een wale 2 1 200 2 81 
GERMINATION OF MatzE.—LowEsT ‘TEMPERATURES. 
The lowest temperatures at which our agricultural seeds can _ger- 
minate seems not to have been satisfactorily ascertained. Thus, 
Thomé (Struct. and Phys. Bot., p. 209) says the growth of the em- 
bryos of maize at the expense of the reserve material begins at 9°.4 
©. (48°.9 F.), which are the figures of Sachs (Text Book of Bot., 
729), but experiments at the New York Agricultural Experiment 
Station indicate that germination takes place at an even lower de- 
gree of temperature and that there is a difference between the sums 
of temperature required for various of the form-species. 
In Dece., 1884, as given in our 1884 report, two preliminary trials 
were made to test the apparatus for maintaining constant tempera- 
tures and to obtain suggestions for a more complete trial. The 
range of temperature was ascertained through hourly observations 
from 7 a.m. toll and 12 p.m. of a thermometer which had been 
carefully corrected to each degree with a standard. Seed from the 
same ears were used in these and succeeding trials, and the follow- 
ing data was obtained : 

