30 BULLETIN 466, U. S. DEPARTMENT OF AGRICULTURE. 
Soluble and insoluble ash.—The insoluble ash in the United States 
samples shows an average figure of 0.33 per cent, with extremes of 
0.81 and 0.21 per cent, but when Canada is included, the average 
figure is 0.36 per cent, with extremes of 1 and 0.21 per cent. 
These again are somewhat lower than the figures obtaimed for sap 
sirup. One sample from Michigan, one from Ohio, and one from 
Pennsylvania had only 0.22 per cent of insoluble ash, and another 
from Pennsylvania had 0.21 per cent. The total ash in each of these 
instances was not low, but was near the minimum line. The results 
obtained by grouping the samples by localities and dividing the 
insoluble ash contents into classes by 0.10 per cent are given in 
Table XV. 
TasBLeE XV.—IJnsoluble ash content of sugar, by locality. 
Number of samples. Per- 
cent- 
Insoluble | age 
ash content. | hears of 
| Ind. | Me. | Md. ESS: Mich. |N. H.|N. Y.|Ohio.| Pa. | Vt. |W. Vaz! ada, |. otal.| sam- 
| | : les. 
9) 
Per cent. | 
Below @:23022 (25-5240 £2: h Fee cee: (Sepa de tee oe ISTE PRE DCL CPOMIEEE | a aN ibang aos 
(O9335 Be re | 4 1 | is 44 ol eee Se 7 6 | Af 58 ne <oes| eco peh oaks Cee 35 9.6 
24 to 0.29... 5 | 1 | 5 | 8 6 6 29 5 14 TSH ES Ee 15 | 1127) 3058 
30D SOe2 4 | 2 | 4) 2 7 5 15 17 14 DAS es [> Ss SO as 
40 to .49.. DEVE. 4 <3 EWG SERS 1 4 2 7 3 22° ) 49} Raoes 
50 to .59.. 33. | Sean Eee | Seer eee | = am | ee CRasas | Zz 8 2 94, o24 6.6 
GOMOE COE SS Fee ee. ee: eases | SEE FS] SEE ERAS | 1 5 2 8 17 4.7 
LOO 79=- BE eae 2 | aorsesere lee eS Ss pe soes| Bese =: PVE Sn] Bie ae \poess< | eas see 2 ee 5 6 1.6 
SSO OPASIE TEE. ETI. - RAED DERE ES | SEP MES). SER |. ee ates Lee 28 SH ERIS 2 312k. 8 
GQ iO> Os. 5 Ss eee Pee ee S| eset | AE es pe ated lepeneaeses a) here, See Jeomens|lsecooes [ats cea [1 : See 
1,00jt0:1 09.8213. _<i2 agt e | 03s EEO: | esescir e ya ts ee Le. on ke | STA ESO es 
Total. - 19 4 | 11 | 14 | 23 | 12) 56 31 43 63 71 80} 363 | 100.0 
J | J | J } | | } 1 
1 0.22. 20.21, 0.22. 3 0.81. 41.00. 
From this it is seen that 72.6 per cent of the samples have an 
insoluble ash content of less than 0.40 per cent. In Canada 59 per 
cent of the samples have a higher number than that, while all the 
West Virginia samples have a higher insoluble ash content than 
0.40 per cent. The other States show their largest figures below 
0.40 per cent. 
Percentage of soluble ash divided by percentage of insoluble ash.—The 
average figure is 1.69; that is, the percentage of insoluble ash is 
about 55 per cent of the soluble ash. The highest is 4.07 and the 
lowest, 0.43. Among the sap sirups some 29 samples, or 6 per cent, 
showed a ratio below 1.0; among the sugar sirups 8 per cent were 
found with this low ratio. These samples were confined to the 
State of Vermont and to Canada. From Table XVI, showing the © 
data by groups of 0.01 and 0.25, it is seen that the largest percent- 
age of samples falls between 1.25 and 2.75. 
