MOISTURE CONTENT AND SHRINKAGE OF FORAGE. 15 
tirely uniform, but except in a few instances the probable error is 
quite low, averaging for over 200 samples only 0.28 of 1 per cent. 
With such a low probable error it seems entirely reasonable to depend 
upon the air drying of samples for all practical purposes. 
COMPARISON OF SAMPLES OF GREEN FORAGE WITH SAMPLES OF FIELD-CURED 
FORAGE. 
Summary Table III gives a complete comparison of the averages 
of the probable error in green and field-cured samples for the differ- 
ent crops as collected by six individuals. These averages include 
more than 250 samples of green material and more than 200 sam- 
ples of field-cured material. The best index to the reliability of 
these samples is in the percentage of moisture in the original samples. 
TaBLE IIT.—Mean percentages of morsture in forage samples of different sizes, showing 
also probable errors. 
SECTION A.—GREEN MATERIAL.1 
Moisture. 
Sample. Crop Place 
Original iMGeide Lost in air 
; samples. y- drying. 
Per cent. Per cent. Per cent. 
ACHOUNG e oeckine sete a aoe ale Sorghum..| Amarillo, Tex.| 73.24+0.516 | 34.8+0.894 58.9+0. 801 
S-DOUNG mie asses sane cea oes Ieee GIDE NRA colisoaee doses 71.2+ .248 | 37.94 .630 53.74 .643 
PPAWOUNG eects cok enn = cae oan leas Com eeeraleeae dose erere 70.14 .451 | 38.14 .476 51.64 .523 
NG DOUMG sere es poet onic asics s cicie CWOSER asa Gaaee dowenaaese 70.84 .274 | 37.54 .209 52.44 .437 
IMGa rete sere oe oa eens oan 5 hc e cameo eros 71.2 37.1 54.2 
A= NOUN Ms Sees eee eae ais cate cioreis SORT NbN S|) EWE GNIS Golacckccoacccocdl keeboecceaboes 66.94 .526 
S- POUR GE. eres see oes ete wic'cis fierce CIDER Neal ezene GO eee ee rrpa Seats | eras ote wescte crersiee 68.0+ .296 
PETS OUI aoe See es Sasi saints cleo s| sine COseesecllanoac GO Aaa Rae Sosa clnces caminet 64.94 .289 
1G POUN Cassette em arises sae GOR oes GOs seers ease ssid acis| ae Sec smc ce 63.44 .393 
HMA eh r epere paper ate aya ata | etree cloeai| i oie ate o atole tae Cee Oe che cette oleae cecmiae omar 65.8 
oo ee” 
ADOUNGe ee Scene semi ae saci Timothy... ee London, | 58.14 .204] 15.04 .192 50.6+ .272 
io. 
S_POUNG se eee se ee eas wc GhOges 284 eames doses: 57.8H .310} 15.34 .070 50.2+ .359 
1 2=WOUN Cee anes eee aciae Se wiee SeiliciS GOR eee Cossaeee 57.84 .137 | 15.04 .176 50.54 .230 
PBS UE een | Opal cetere dose 58.44 .167] 15.44 .179 50.8+ .194 
IWUGITN Se See Ae Beas Hie See ea tn 58.0 15.2 50.5 
AM TVOUG eee eee ce ne cis aie Se Tall oat- | Arlington, Va.| 71.14 .203 | 15.84 .095 65.94 .129 
ass. 
SeWOUNO Rare Ber ee ee eo AG Bee at CO seas ee 71.54 .268} 17.44 .145 65.54 .353 
PP POUN Gest tees. ses aot ence Coe rae ee dose 72.2+ .056} 17.54 .157 66.3 .060 
TCS OO ING Ao ee ee ee eee | er GO easalae es COs 73.384 .355 | 17.64 .079 67.54 .424 
INTO Tine tte ee Meee eho cre nei il eras sis ore SSE 72.0 17.1 66.3 
——— a SS SS SS ae 
CHAO MIG las ce ones a aera aEeee oe Alfalfa....| Arlington, Va.| 74.0+ .344| 10.74 .517 71.04 .237 
SOUN GREE Sete a Sai Ome | Maes dO eee 74.8+ .225|} 10.54 .129 71.84 .257 
TOA ODL NAY G Ls ap GO eee ee ee (6 Koya Fe 75.54 .160} 10.94 .107 72.54 .136 
NGA POUNG a see ee ccs cleo we GO een eae doi: 76.54 .155] 10.84 .251 73.64 .155 
Monneteeren ec KOT Oe as 75.2 | 10.7 72.2 
ASNOUNGer meee enc ee) Be ET Alfalfa ....| Chico, Cal..... 75.14 .258 7.64 .253 73.04 .249 
SOLEIL See ee cn os iain Se ete Sa we (OKys Aaa aaa Goiaseeee 76.74 .234 9.84 .407 74.24 .258 
O-WOUT Cie fasten oe ey sacle ee GOs saat leeece dO: ee 77.74 .129} 10.34 .113 75.2+ .144 
TGS OYOTTING Fh cts Gas BG See ee eee ee Goya |S so dO. eee 78.04 .109} 10.2+ .098 75.44 .108 
Ga Timer retin res ony (Se ynte PAG HG MR os eae ee 76.9 9.5 74.5 
1 Average probable error for the 4-pound samples, 0.305; for the 8-pound, 0.257; for the 12-pound, 0.187; 
for the 16-pound, 0.212; and for all the samples, 0.240. 
