UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 7 64 y 
Contribution from Bureau of Markets 
CHARLES J. BRAND, Chief 
Washington, D. C. PROFESSIONAL PAPER. July 5, 1919 
FACTORS INFLUENCING THE CARRYING QUALITIES 
OF AMERICAN EXPORT CORN. 
By E. G. BorrRner, 
Grain Supervisor. 
CONTENTS. 
Page. | Page. 
HH TOGaCLION s= ea oe eet SIS ee 1 | Cargo No. 2—Continued. 
Moisture content as a factor influencing the Change in temperature and condition of the 
carrying qualities of export corn......... 3 natural corn in hold No.1-..-...-.....--.- 29 
Germination and fermentation in export Change in temperature and condition of the 
TTT... 22S 7a FES Ss ae eee 5 natural cornin hold No. 2.-...-.-.-..-.--- 30 
The keeping qualities of export corn influ- Change in temperature and condition of the 
enced by its position of stowage in the dried corn in hold No. 3.....-.-..-.-.--- 32 
<[AAEITSIIT sae RR pee ep aes 6 Influence of boiler heat on the corn........ 33 
Length of the voyage and season of the year Change in temperature and condition of the 
when shipped, in relation to the carrying natural corn in hold No. 4.............-- 36 
qualities of corn..........--2.--022--0--- 6 Influence of engine heat on the corn......-. 38 
aeetepee et ee a ee 7 Change in temperature and condition of the 
Description of the corn.......-....2.-.---- 7 natural corn in hold No. 5.......--..--.- 39 
Stowage SUETPICORM Se eat lee oe 7 f Influence of tunnel heat..................-. 40 
Condition of the corn as loaded...-.......-- 8 “Sweat”? and fermentation in the holds ..-. 43 
Temperature changes during the voyage... W Correlation ofthe changesin the temperature 
Influence of water temperature 3 83 oe 11 of the corn and the changes in sound ker- 
Temperature changes in top and bottom of nels, acidity, germination, and test weight 
aldaeeeed. chy 12 C)s) te ark Sorte yy 13 per bushel’ 444: =22) ta44-— ree esse e sie 44 
Influence of boiler heat..............---..- 14 | Catgo No.3........--..------22----2-- 222-02 45 
Condition of the corn as discharged........ 17 Stowage of the corn.........-....---.------ 45 
“Sweat” and sprouted corn in the holds... 20 Condition of the corn as loaded..........-.. 45 
Moisture test alone not sufficient to deter- Temperature changes during the voyage 
mine carrying quality of corn...........- 21 and condition of the corn as discharged.. 47 
Correlation of the changes in temperature Cargo No. 4...-.--- 2. +2. -2-e2eeee ene eee ee ene 49 
and the changes in acidity, germination, [Cargoes Nos. 4 to 9 are discussed under the 
moisture content, and test weight per same headings as cargo No. 3.] 
Vi fy layers ee ar a create am 99 | CANS OUNO omen e rial ake smnl=~ =n='elainint- oe = 54 
The handling of the corn as discharged.... 24 | CATO No. 6...........-----2--2e0ee eee esse ees 60 
i ne apie al ee ik AE a panes ae 26 re: a : PIR Daa I ea eset Aas KD ee 
PROPEL MUD COM eons on a vied ecintaixenns==' 26 Care No. biel densa Mhde ttn dota RA. 90 
Condition of the corn as loaded.........-..- 27 Summary OORT I EE ane a a SR 96 
Pemmerstite. cidnres; Curing tie, voyage... | Maes fore uh ST ae ‘ 
and condition of the corn as discharged. - 27 |} 
INTRODUCTION, 
Large quantities of American corn are normally exported to Kurope 
each year. Investigations conducted by the United States Depart- 
ment of Agriculture have shown that a considerable amount of the 
95190°—19—Bull. 764 —1 
