154 REPORT OF THE COMMISSIONER OF AGRICULTURE. 
will be settled positively before anotheryear. Incase a part only of the 
albuminoid matter was soluble in water, the amount of soluble starch 
and gum would be correspondingly increased and the insoluble starch 
equally diminished. A determination of the albuminoids soluble in 
water in “ Prolific” sugar corn revealed the presence of 1.92 per cent. 
From the unsatisfactory reactions obtained with Millon’s reagent it 
seems probable that the amounts of albuminoid matters soluble in 
water are not much greater in any of the samples examined. Further 
investigations will be made in this direction. 
Two experiments were made with the sample of sweet corn No. 24, as 
follows: 
Five grams of the finely powdered grain were shaken up with 500 @.¢. 
of water, and allowed to stand for four hours, with occasional shaking; 
the liquid was then filtered off, the filtrate being turbid as usual, and 
an aliquot portion tested for glucose (?) with Fehling’s solution, both be- 
fore and after inversion with dilute sulphuric acid. A larger portion of 
the filtrate was evaporated to dryness, and the nitrogen determined in 
the dry residue left upon evaporation. The following results were ob- 
tained in duplicate: 
Percent. Per cent. 
Pornble In WALE .. 5560 28 Sons cass ne os sch ccs ccaepaecwelcs mane seen eee 43, 37 
Albuininoids soluble i witer. 2:22.22. s225 2505 .25-cccsecesccccs. 192 2.03 
@lucose: (7) before inverting Wil ood. sods Pads dl ee chute cutiouea< 7.92 8.58 
Glucose agter inverting, 1 hour. .jces.svunecdsc. es dsee steasaceeddas 29, 95 26. 95 
Glucose aiter inverting 2 DOUtS saces4 aiasac.cqtseicecone ss sone wees 36. 00 33. 16 
The above results are calculated to the air-dry grain analyzed, which 
contained 10.13 per cent. of water. 
The amounts of starch inverted in the above experiments were as fol- 
lows: 
Percent. Per cont. 
SLATS Rn Orbe sEhher Lal OU ss ee eee: tose Se ae ge 19. 83 15. 90 
Shatein in verued. tkpericc. OU ile oe ates. ors anyoe co rctoreieee teehee 25. 27 20, 29 
It will appear, therefore, that only a portion of the albumen insoluble 
in alcohol was soluble in water, and that the analysis of this sample of 
sweet corn should have 5.57 per cent. added to the soluble starch and 
gum and an equal amount subtracted from the starch. The corrected 
analysis for the air-dry and water-free grain would then be as follows: 
Sugar corn No. 24. 
mae es, a 
Constituents. | ig 8 
| & 3s 
i <4 = 
| Per ct.| Per et. 
Warton ener ee Sie eR ORE Cy i Ne SRR ae Ge Ue 10:13] 3c. pee 
Ags erBibt ote giecstsctac! Ssh casiccecscmeoeebimeecasteaeene Sesh cata ued ocle cleo sdaneeciee | 192 2.14 
QUIS ee eben ieee o2 cok tatelecuien Cease cece bes tee ore Meee Dab ei ns\etes sh ean sclee eee 7.95 8. 85 
BUOR slecbsetecs Sccseskhas cecal ad svssas i Moates pease wos cea eeecboe eesces see cecuacmee 6.77 7.53 
AGia pe one seas aad Shc crus =i eh be Dn a = jhee bees Co eh eeaee oe oes coher wa cal Sue acl eee 6. 53 T2 
LAIHUMN HAO LS I AlCONO) And Water o-cocso anon mocemeccece. pase me saseact nin oeemee 3.57 3. 98 
Albumiia insoluble in alcohol and soluble in water ......---....22s¢ce0-5 oes eee cee e ee J. 98 2. 20 
Soluble starvely nd ptm. «nic. cscs eco Sens ecuseskecmaneeenes eases cedacejeesos snamcceeeer 21. 83 23. 73 
Colluloser i tte re ok sae 5 ok eee eee eee Perel Si. BOY ACM ee od ose 1.75 1. 94 
Starch; By digetiente\s2- 3... 2... ftdese dais bcdetecs eons Soe apes sceeeepbbeecst-ocdaece 38. 07 42. 36 
: 100. 00 | 100. 00 
Without doubt a similar correction is necessary in the case of the 
other sweet corns analyzed, the soluble starch being too low and the 
