36 BULLETIN 764, U. S. DEPARTMENT OF AGRICULTURE. 
No. 19, which was fastened to thermometer 19, as compared with 
sample No. 20, which was fastened to thermometer 20, showed a 
greater increase in acidity during the voyage by 10.8 c.c., and a 
greater decrease in germination by 59 per cent, sound kernels by 47 
per cent, and weight per bushel by 3.5 pounds. 
CHANGE IN TEMPERATURE AND CONDITION OF THE NATURAL CORN IN HOLD N@. 4. 
During the voyage the natural corn in hold 4 became hot and 
badly damaged in the upper part of the hold and along the shaft 
tunnelin the bottom, 
: MARCH APRIL P : 
a ir 7 as 1s shown in figure 
140 
EBM 23. The greatest 
| apa 
L- 120 | 
ae Faonene HH apees =a damage in the corn 
100 és occurred near the 
ae surface and de- 
wo creased with the dis- 
tance downward. 
The temperature 
60 2 — — ai > re} 
N sheer tty aaana L 
ei Esa 
PCO 
PCE PPPS 
ae BEER EEE Hae tara Hr of the corn in this 
48 hold as loaded varied 
2 2 from 50° to,624eHe 
21 aby In the first 11 days 
ree of the ocean voyage 
31 168 5 
35 138 ending March 12, the 
Ee temperature near the 
271 
92 a6 surface about 20 feet 
3 188 back from the en- 
30 184 
gine-room bulkhead 
increased from 55° to 
68° F.; by March 29 
the temperature had 
reached 114° I. and 
by April 6, it was 
128° F. as shown by 
the temperature rec- 
ord for thermometer 
22 in figure 23. The 
Fia. 23.—Hold 4: Temperature records of the electrical resistance t f ie 
thermometers, location of the thermometers in the hold, and sam- tempera ure or the 
ples secured in Denmark. Heavy shading represents heat- eorn located about 4 
damaged corn. (Cargo No. 2.) Peet own inCreaeeel 
at about the same rate as at the surface, but did not start to increase 
so soon; the temperature at this pot was 115° F. on April 6, as 
compared with 128° F. for the surface corn. (See temperature 
record for thermometer 24.) 
It was still longer before the increase in temperature of the corn 
located about 12 feet below the surface began to be pronounced. 
