BULLETIN OF THE BUSSEY INSTITUTION. 55 
Lilac leaves. Plucked from a bush at the Bussey Institution, September 
15,1902. 
Mulberry leaves. Plucked from a tree at Hingham, Mass., September 29, 
1902. 
Rhododendron leaves. Leaves of Rhododendron maximum. Collected 
early in April, 1903, at Reading, Mass. 
Lettuce leaves (Lactuca sativa). Several ‘‘ heads” of lettuce, bought in 
Boston market, April 6, 1903, were chopped fine, after removal of the 
stalks, dried and ground to powder. 
The tender leaf stalks of the common garden rhubarb (Rheum rhaponti- 
cum); as used for making pies, tarts, and sauce. Bought in Boston 
market, May 12, 1903. 
Rock weed (Ascophyllum nodosum) (Fucus nodosus of Linneus) gathered 
from rocks at White Horse Beach, Manomet, Mass., July 21, 1902. 
Unevaporated 
Mannose hydrazone Evaporated 
ihn a eps ae Mannose hydrazone was or was not 
cb ee oti eect detected in the several fractions 
aN ey Fe of the evaporated product 
wunevaporated pro- o the hydrolysis. 
duct of the hydro- : 
lysis. 
Name of Material Examined. 
~ ‘a esi ae eh Xe! o> ee it a ee . 6 ee ee 
moO Ae FAN AO mo mH AN FO MH RO WSO 
Red Clover leaves . No No No No No No No No No No 
Apple leaves ...... No No No No No No No No No No 
lilac leaves ...... No No No No No No No No No No 
Mulberry leaves. . . .. No No No No YesNo No No No No 
Rhododendron leaves . . No No No No No No No 
Lettuce leaves ..... No No No Yes Yes No No 
Rhubarb leaf stalks . . . No No No Yes No No No 
mockowerdis .).) so). .° Query * 2 No. sNo. No Noo Now No 
* Some large opaque globules, insoluble in glacial acetic acid, were ob- 
tained in the case of the rock weed. They much resembled mannose-hydra- 
zone globules, but not enough so to permit of certainty. 
Of fleshy fruits only apples, olives, and bananas were subjected 
to hydrolysis, as will appear below. 
Apple Fruit. Flesh of Baldwin apples. Three specimens were selected 
at different times by Mr. Hersey from a store kept in barrels at his 
farm at Hingham in an ordinary cellar of even temperature. 
A. Specimen chosen on October 17, 1902. The apples were hard 
and firm and not fully ‘‘ ripe.” 
B. Specimen chosen on February 15, 1903. 
in excellent condition for eating. 
The apples were now 
