yt 2 
| REPORT OF TICE CHEMIST, - 989 
Z \ ‘ 
Analyses of the joints and fruit of Opuntia Engelmanni, ete.— Continued. 
Ue 
. FRUIT. 
N $ ' 
* Last of season. Younger. | Youngest. 
Steamed. int ey cai Steamed, 
ald f 
Orig Dry Orig Dry Orig. Dry 
sub sub sub sub sub. sub 
PMALUMIN oD ota) sch he 2 ceo, sitheveivie,niateicjolctatales/qave pistes 5p o's BOL008 huh ee SoNOO a See S500 Wee 
DPE re 8 Ny oles dat deyece est! 1.60| 11.44) 1.69! 12.58! “2.921 ‘14:79 
TRIER ees os Le Nis coi neh ne de S oauiowe tee 1.58; 11.257}, 1.87] 12.45] 172]- 11.48 
(Siu. LEGON Ie Nees AO on aoa Aneta uc vn no oe 1.77 | 12.66 1.08 W211 9 44 29,96 
Glucoside and organic acid........¢.........e..00 eee Tet ie eo AG 250101). 18.40 a 
PRR TOLE aR AI COMOMG Je c.v Was ov pietividher ces see teenies aera gat FOTO Rerronte [Ae G2 Siete de alens [4. 25] 
P BUPRNTR ISR EAESO ete Se nn o eN s c aters Wate a.clutaya: castle & win ein ried ueel® 1.00 | 7.10 % 5, 00 71 4.75 
eae Nyc ae teh ah esi ta titre nialy Sepilb a} la chaialal es 0/4 /adetarareraya/|Elgtata he es lf eatni] cok: s a [arOOliiweteaes [8. 46] 
= if REEL EM ELIS OT eae cf stent LM Dy Hs as iMlslciain: AchaiaCohe dtajaves ele fs \piclerel ate 2.70 1 19.29 2, 81 18, 72 3.08 | 20.54 
‘ RPEIPETM CASH a eee io car mi Sak Phe tacsiianlolyauraay yaaa NRA a5 20 88 5. 86 93 6207) 
APLC NCO chats os ootins daidhae cele ce Sele aie skp wrod elas 3.34 | 23.90 Ba tl | 24076 3.20 | 21.31 
100.00 | 100.00 | 100,00 | 100.00 | 100.00 | 100.00 
BREED CETTE NSIT Charen tens aS secret oso vibes, be Sele ose Gabel atta cexas Boe Beenie eee 5 A) 
’ Non-albuminoid nitrogen ........... habe Celine edn (Clot i588 Ba Vad ise PIOy|.-caee ot 15 
Per cent. of nitrogen as non-albuminoid ............)........ Nor te erepeee LOSS Dyers 14.7 
| 
The determinations show considerable difference between the two 
species. The Opuntia Hngelmanni has much more oil or fat and 
albuminoids, but less glucoside or gum than that previously an- 
alyzed, and in the old joints the mucilage largely disappears. The 
- percentage of crude fiber is also slightly greater in the O. Engel- 
mannt. When calculated to the original percentage of water as 
mere fodder analyses, the results appear thus: 
. i} bt Leet : Old stem 
«) Growth of the year. | Growth of previous year. joints. 
Natural con- Natural con- Natural con- 
dition. Steamed. dition. Steamed. |“ Gition. 
Orig. | Dry | Orig. | Dry | Orig.{ Dry | Orig. 
Dry | Orig. | Dryj 
sub. sub. | sub. | sub. | sub. sub. | sub. 
sub. | sub. sub. 
NACH Se Os BG SOO a taal BO 30M) || detoeets OBE DON ioe es. BOFOO) at a 86:00. |. 2.2.52 
MSI «6 ULE RUNIES  n eerge e 3.27 | 28.38 | 2.18 | 18.21 1.18)| 18.09 | 1.60 | 15.98 | 1.2) 12:64 
GUase ee Be ah iie lees cles aie%sieis sess .83') 6.26 1 | 6.30 48) 7.31 .66 | 6.63 20 38.27 
(CHILO) al ofS) ee Uehara ere a ae nee LE en OO Nhs Wo OS ie ONO 80 | 12.27) 1.39 | 18.96} 1.97 | .14¢07 
AT OUMUINOLAS Hi /5.- 2 scje wiaies seis oe 1.16 | 8.29] 1.02} 8.46 .50 | 7.81 .80 | 7.95 aio 5. 66 
Nitrogen-free extract ...... .| 7.58 | 54.17 | 6.95 | 58.02] 3.54 | 54.52 | 5.55 | 55.48] 9.20] 64.86 
100.00 |100.00 |100, 00 /100.00 {100.00 |100.00 {100.00 |100,00 |100.00 | 100. 00 
Per cent. of N.asnon-alb....|....... C0 eae ara, gaken ae eh eee (AGES tga Cake 46.4 
| The amount of nitrogen-free extract is decidedly smaller, and the 
nutritive ratio a more nearly normal one than in Mr. Dull’s species, 
undoubtedly making it of greater value and necessitating perhaps 
only the amelioration of its physical consistency to make it by itself 
a suitable cattle food. The larger amount of water in the growth of 
the previous year is due to its greater thickness, which, however, in 
the old stem joints is neutralized by their more woody nature. 
In the O. Hngelmanni, as in the other species, the glucoside in- 
creases with the age of the plant, accompanied by a corresponding 
AG 87——19 . 
