38 BULLETIN 764, U. S. DEPARTMENT OF AGRICULTURE. 
INFLUENCE OF ENGINE HEAT ON THE CORN. 
It will be seen by the temperature records in figure 24 that the 
temperature of the corn located next to the bulkhead separating hold 
4 from the engine room was influenced to a considerable extent by 
the temperature in the engine room, expecially during the early part 
of the voyage. 
There was an unventilated water-tank space next to the engine 
room bulkhead in the upper part of the hold, which was separated 
from the cargo space by a board bulkhead that was not air-tight. 
Thermometer 23, which was located next to the tank-space bulkhead 
in the upper part of the corn, indicated an increase from 60° to 90° F., 
or an increase of 30 degrees the first 8 days ending March 10, during 
which time the corn stowed the same height but about 20 feet back 
from the bulkhead increased only 3 degrees and did not reach 9C° F. 
until about March 21, 11 days later. 
TaBLE 15.—Condition of the natural corn in hold 4 as loaded and the change in condition 
while the corn was in the vessel—samples taken in order in the hold, from top to 
bottom. 
| T 21, etc., represents samples in crossed-wire containers, fastened to resistance thermometers of the same 
numbers; * indicates not included in the average. ] 
| Weight per 
| 
Temperature. eeu Acidity. Germination. Sound kernels. | hacher 
SE Se (eae ee (aera area el MS Nl eS Ne ee me ee 
Ree | As | As | As As | | As 
Nov | AS.| As dis |)45_| as ais: | g85. | As diss 285. | As ais. |, A5.| As ais | 18 | Asis. 
ed. pe ad akars i | charged. “4g (charged-| aq charged. | ae |charged. 
' } j 
See | Powe a esl oe a Se, (Ee fe ee Lee ee (ee 
| 
o7. | °F. | P.a.| P. e. | ec: | cec.; |P.cb| P. ct. P.ct.| P. ct. | Pounds. | Pounds. 
T21| 52| 117, 19.5] 21.7] 20.1} 41.0) 60 0 95.5 O| 53.25} 45.50 
729 | 5A | 198. |1924-| 41894202 | 43204 —- 7 0) 91.1 0} 53.50 43.25 
epeiyee. . te dB hee fe eB eect [= R39 eee = (peace 40 |2s el eee 
2 eee Ee yee Bank yrs Peease | 35.6 |...... Oe: Renee B77 eee | 48.00 
ag a HE |=e Benge AR by (eee. | 28.4)... Osos ip aS ee 48.25 
Tigi a ey eae Gee CLE Pee fata: iY poten Ojai 0) ache 45.50 
T23) 56 106} 19.3] 16.4] 20.0] 41.9]. 73 6 | 94.0 | 29.6 | 52.50 49.50 
T24| 56 116 | 19.0 18.5 | 24.6 37.1| 58 0 | 93.0 | 0} 54.50 51.00 
BSi[ce a 1071 ee La Ee it 230/01 ee Oe 15-04: See 49.00 
G9: ee cb emer 16:0:)-- | er 33-2 ee] O lars a| Te eee ---| 49.50 
T31| 56} 89 - 18.6 16.8 19.5 29.7; 63 22 | 94.4 55.8] 54.25 50.75 
T25| 60 95 | 18.6] 13.6 | 20.1 26.3) 7. 52 | 97.5 $6.45) 3°50, ae 
T26| 56! 116/ 18.5! 16.0] 18.6 32.9} 62 16 92.8 AD SS a 49.75 
aU ee Bee i biog pene 19:3) 2 rte Bs eee Oj°S"4 3425 Loose es 49.25 
i Eee 86 uc=s= ee ees pa | Goat 38:|saae S47 | 50.50 
Es| eae i ea Tes eee 7] a Ses Pie eee om ee 51.00 
0 -is y | 93 18.6 18.5 | 19.2 28.7; 70 0 96.3 57.2] 53.00 48.00 
T28| 56 66 18.8 17.8 | 18.7 24.4) 66 68 95.9 95.8} 54.00 53.00 
7h | pete ee Hees ih fre ba 20 Oilers Te eee 40-5 4 ee 51.00 
fis) aesengs Wisi iccoes 19° Oye Se Pi iy i Sees Base aret ShBipese rs 51.75 
rice ae 66/240 = 19-0) ee oe te i eee 7 Ee te TBs Re ees-= 52.00 
21 bt 85 19.1 18.6 | 21.1 26.2; 58 27 | 94.1 89.7} 52.00 50.00 
T33) 51 95 19.0 18.3 | 20.7 28.4; 70 9 | 92.7 55.5 po base 50.00 
BSG | ees 74 | 19.2 18.6 | 18.5 246 68 65 95.5 96.0} 53.25) 51.50 
T34| 55 59 18.8 18.2 | 18.7 22.91 7 69 95.1 86.5 | 54.00 53.50 
qf (oe 7) ees 1830) oe Os 9 PR 7 eee 228 4 Poe: 48.75 
T35| 55] 59 | 18.7 18.2 | 20.3 24.4) 61 68 97.0 95.4} 54.00 53.25 
RE ee 77 | 19.7 18.4 | 20.4 24.3) 67 | 59 94.2 86.0} 53.50 52.50 
P29 |) 55 67 | 18 18.4 | 19.§ So Cae 68 95.4 94.5] 53.25 52.25 
During the first part of the voyage, to March 23, thermometer 25, 
located against the lower part of the tank-space bulkhead about 10 
feet from the surface, also indicated a higher temperature than ther-. 
mometer 26, located the same height but some distance back in the 
