70 BULLETIN OF THE BUSSEY INSTITUTION. 
Pine wood that had long lain on the ground exposed to the weather. — 
Pieces of limbs of white pine picked up at Hingham, Mass., by Mr. 
Hersey, on land from which to his knowledge a grove of white pine 
trees had been cut off twenty-five years or more previously. 
A was a limb 14 inches in diameter. It was much decayed, and 
crumbled to pieces between the fingers. It was hydrolyzed 
with hydrochloric acid of 5 per cent. and treated in the usual 
way. No mannose-hydrazone was got from the product of the 
hydrolysis, — neither from the evaporated or the unevaporated 
product. 
B was a limb 2 inches in diameter. It was less decayed than sample 
A. No mannose-hydrazone was got from the unevaporated 
product of the hydrolysis; but from 1 cc. of the solution from 
the evaporated portion mannose-hydrazone balls and crystals 
were obtained both before dilution and after dilution with 1 and 
2 ce. of water. No mannose-hydrazone was got from portions 
of the liquid which were more strongly diluted. 
Spruce wood (Picea nigra), from a stem 24 inches in diameter, collected 
by my assistant, Mr. F. T. Dillingham, at Durham, New Brunswick, 
on August 14, 1903. After the usual treatment mannose-hydrazone 
was got from 1 cc. of the unevaporated product of the hydrolysis, but 
not from portions that were more strongly diluted. From the evapo- 
rated product of the hydrolysis mannose-hydrazone balls and crystals 
were got from 1 cc. of the undiluted solution, and from 1 cc. portions 
that were diluted respectively with 1, 2, 3, and 4 cc. of water, but 
not when 5 cc. of water were added. 
Fir wood (Picea balsamifera), from a stem 14 inches in diameter, collected 
at Durham, New Brunswick, by Mr. Dillingham, on August 14, 1903. 
After the usual treatment, mannose-hydrazone was got from 1 ce. of 
the unevaporated product of the hydrolysis, but not from portions that 
were more strongly diluted. From the evaporated product of the 
hydrolysis mannose-hydrazone balls were got from 1 ce. of the un- 
diluted solution, and from 1 cc. portions that were diluted with 1, 2, 
and 3 ec. of water, but not on dilution with 4 ce. 
The following results of tests of sundry vegetables, etc., are 
to be regarded as additions to the tables already given on pages 
Dd, 96, and 58 :—= 
Yellow Turnip.— Bought March 17, 1904. The roots were peeled and 
only the flesh proper was ground to a pulp and subjected to hydro- 
lysis. Excellent mannose-hydrazone crystals were obtained on testing 
1 cc. of the unevaporated product of the hydrolysis, but none were got 
after diluting a similar quantity with 1 cc. of water. From 1 ce. of 
the solution obtained after evaporating the product of the hydrolysis, 
mannose-hydrazone crystals were obtained, and they were got also on 
diluting 1 cc. of the solution with 1, 2, and 3 cc. of water, but they 
were not got when the dilution was pushed to 4 cc. of water. 
