STUDIES ON APPLES. . 
Tapie VII.—Tabular résumé of the . 
Bertrand and 
| Tromp de -Haas 
and Tollens. 
Bourquellot and 
Pectic acid .... 
Pectinie acid.. 
Page 
in : 
Date.} this Source. Preparation, 
re- 
view. 
Td. |e J cl entke es oe sab SSeS sini ee eee ele eee ee 
16 | uc sSees aot b= oes 552 Set ee eee ee 
16 | .02- sods - 22 e See oaae tee ee eee 
76 |"Beet miareseeeo eee Cold dilute” hydrochloric 
- acid. ~ 
76 | Gentian root -.--- _...| Extraction with hot water - 
11\- QU CCl oes See eee | eee do.23525) 5:1 Se ee 
77.| Pears, apples, OTAD C= |/3)) 5 Se ee a 
peel. 
17 | weceed sale ee ee | ee 
18>) - s-02 52. Sse ode one se] eee ee eee 
60 |ics- oe eo | 
70; Beetimareece-ee eee Boiling with sodium car- 
bonate. 
VOSA see GOs Fs Seat Boiling with dilute potassi- 
um hydroxid, then fil- 
tering and precipitating 
~ with hydrochloric acid. 
a Pectines. <. osasaeeeee Treatment with alkali...... 
Old MSc nee tt ee ot | i oe ec em » 
of 
TL | Beet mare... -.ceerees Boiling with dilute hydro- | 
chlorie acid and precipi- | 
tating with alcohol, | 
7) 
44 
iy 
i, 
