502 
INDIAN MEDIOINAL PLANTS. 
The active astringent principles of eutch are a tannin formerly known as 
catechu-tannic acid and a crystalline body namedeateohin. The value' of 
cutck as a dyeing and tanning agent depends upon the amount of these two 
substances, while at the same time they are a measure of its suitability as a 
medicine. 
According to Professor H. R. Proctor of Leeds, the following are the 
analyses of extracts from Acacia Catechu : — 
Tanning 
matter. 
Non-tanning 
matter. 
Insoluble. 
Water. 
Dark Cutch 
58-9 
1-0 
19-1 
12-0 
White cutch of kath 
72-2 
5 8 
0-8 
14-2 
Yellow cutch, Pegu, Burma 
69-2 
80 
10-4 
124 
Professor Proctor also forwarded some figures of recent analyses of ex- 
tracts which were supposed to be derived from Acacia Catechu. 
Mark. 
Tanning 
matter. 
Non-tan- 
ning 
matter. 
Insoluble. 
Water. 
Tanning 
on dried 
extract. 
Drysdale 
42-2 
25-6 
7-6 
24-6 
55-8 
Salatiga 
30-8 
297 
2-2 
37‘3 
491 
B. B. Flag I 
62 6 
12-0 
10-0 
164 
73'9 
B B. Leurel 11 ... 
596 
15-5 
7-6 
17-3 
72-0 
B. Star 3 
46-5 
232 
14-9 
15-4 
54-9 
41 ... 
4P5 
17-6 
46 
36-3 
65-1 
42 ... 
29-6 
lb‘8 
31-1 
20'5 
37-3 
Pegu 
30'0 
35-4 
0-7 
249 
39-9 
Assam 
46 4 
34-3 
2-7 
16 6 
55-6 
Arne ... 
45'7 
19-8 
15-8 
18-7 
56-2 
(Agricultural Ledger, 1906— No. 8 pp. 39-41. 
448 . A. ferruginea, D.C. h . f . b . i ., ii . 295 . 
Syn. : — Mimosa ferruginea, Roxb. 423. 
Habitat : — Western Peninsula. 
Vern : — Khour (Nepal); Velvelam, shirnai-velvel (Tam.);. 
Anasandra, vuni or woanee (Tel.) ; Kaiger (Panch Mahals) ; 
Sou khair (Berar) ; Kar, kliair (Gond.) ; Pandhra ; kbair (Mar.); 
Teori khair (Bhil.) ; Bauni (Kan.). 
Of the pods — Babul-ki-sengriy4n(H.) ; Kali-kikai-ki-phaliyan 
(Dec.) ; Velam-kdygal, Karu-velam-kaygal, karu-vel-kaygal 
(Tam.) ; Nalla-tumma-kayalu, barburamu-kayalu, tumma-chettu- 
kayalu (Tel.); Karu-velakam-kaya (Mai.); Kare-jili-kayi, 
kare-gobbali-kavi (Can.); B4bul-sim, babla-sim (Beng.) ; Kala- 
babili-cha-phalli, Babli Shing(Mah.); Kdlob4val-nu-singo (Guz). 
