SUGAR CONTENT OF MAIZE STALK; 



45 



method.* For the determination of glucose, 60 c.c. of Fehling's 



solution were introduced into ;i 200 c.c. beaker, diluted to 

 100 c.c. with boiling water, and heated to boiling by being 

 placed in a vessel containing boiling water. 5 c.c. of the clear 

 filtrate from the lead precipitate were then added, and the 

 water in the outer vessel boiled for a quarter of an hour 

 After decanting off the excess of Fehling's solution, the pre- 

 cipitated cuprous oxide was washed with well-boiled boiling 

 water in a tared Gooch crucible, and the crucible dried, strongly 

 ignited and weighed. The weight of cupric oxide thus found, 

 multiplied by .4535, gives the weight of glucose in the amount 

 of clarified juice used. 



The results obtained with the rive varieties of maize were 

 as follows: — 



A." Composition" of the Juice of Stalks from which the 

 Cobs were Removed when* in the Milky Condition. 



Cobs Removed April 2nd, 1912. 



Variety. 



r. 



Hickory King 



Boone County 



Salisbury White 



Golden Eagle 



Sweet Corn 



April 11 



do. 16 



do. 24 



May 9 



do 15 



April 10 



do. 15 



do. 23 



May 8 



April 12 



do. 16 



do 26 



May 10 

 do. 

 do 



17 

 23 



April 12 

 do. 18 



May 

 do. 

 do. 

 do. 



2 



3 



13 



22 



April 10 



do. 15 



do. 22 



May 7 



9 

 11 

 22 

 37 

 43 



13 

 21 

 36 



10 

 14 

 24 

 38 

 45 

 51 



10 

 16 

 30 

 31 

 41 

 50 



8 

 13 

 20 

 35 



15 -GO 

 17-25 

 16-04 

 17-67 

 15-90 



14-17 

 16-15 

 15-13 

 1770 



16-80 



16-91 

 16-98 

 16-87 

 14-56 

 16-40 



15-53 



15 46 

 15-63 

 15-91 

 14-69 

 16-95 



12-94 

 1500 

 Li 96 



16 87 





11 27 

 13 20 

 12-52 

 13-97 

 11-28 



10-57 

 11-43 

 11-24 

 13-62 



12-96 

 12-79 

 12-91 

 12-75 

 10-24 



12 07 



11-22 



11-08 

 11-27 

 12 61 

 9 77 

 11-82 



8-73 



9 42 



9-84 



12-69 



2-39 

 2-11 

 1-55 

 0-96 

 1-49 



1-70 

 2-94 

 1-80 

 1-06 



1-58 

 1-40 

 0-85 

 0-90 

 2-20 

 1-01 



1-96 

 2-06 

 1-37 

 1-09 

 2-20 

 1-41 



2-40 

 1-75 

 1-86 

 1-10 



1-94 

 1-94 

 197 

 2-74 

 3-13 



1-90 

 1 78 

 2-09 

 3 02 



2-26 

 2-72 

 3-22 

 3 22 

 2-12 

 3-32 



2-35 

 2-32 

 2-9'J 

 2-21 

 2-72 

 3-72 



1-75 

 3-83 

 2-26 



3 -OK 



'Q3 





