24 
BULLETIN 335, U. S. DEPARTMENT OF AGKICULTUBE. 
Table 5. — Measurements and weights of samples of 100 berries compared with percentage 
total acid and actual acid by weight in samples of 100 berries, 1912. 
SANDUSKY, OHIO. 
CHARLOTTESVILLE, VA. 
Variety and laboratory number 
of sample. 
Date an- 
alyzed. 
Specific 
gravity 
of fruit 
weighed 
in water. 
Volume 
of 100 
berries. 
Weight 
of 100 
berries. 
Total 
acid in 
water- 
extracted 
sample. 
Actual 
weight of 
acid in 
100 
berries. 
Differ- 
ences in 
weight for 
each 
period. 1 
Catawba: 
3606 
Sept. 4 
Sept. 9 
Sept. 12 
Sept. 17 
Sept. 24 
Oct. 1 
Oct. 7 
Oct. 16 
Oct. 23 
Oct. 30 
Nov. 4 
Sept. 4 
Sept. 9 
Sept. 12 
Sept. 17 
Sept. 24 
Oct. 1 
Oct. 7 
Oct. 16 
Oct. 23 
Oct. 30 
Nov. 4 
1.048 
1.056 
1.061 
1.063 
1.066 
1.072 
1.077 
1.082 
1.085 
1.086 
Lost. 
1.057 
1.059 
1.061 
1.062 
1.073 
1.073 
1.080 
1.082 
1.080 
1.083 
Lost. 
Cc. 
157.9 
172.7 
165.7 
187.0 
185.1 
205.2 
207.0 
215.0 
197.4 
219.7 
218.8 
229.1 
239.1 
228.0 
241.8 
242.1 
242.0 
236.3 
241.0 
235.9 
221.3 
228.3 
Grams. 
165.5 
182.5 
175.8 
198.9 
197.4 
220.0 
222.8 
232.8 
213.8 
238.5 
236.2 
242.2 
253.3 
242.0 
256.9 
259.7 
260.1 
255.2 
260.8 
255.0 
239.5 
245.2 
Per cent. 
3.15 
2.60 
2.17 
2.01 
1.64 
1.55 
1.47 
1.30 
1.27 
1.21 
1.17 
1.83 
1.42 
1.31 
1.16 
1.06 
1.01 
1.05 
.96 
.95 
.91 
.93 
Grams. 
5.21 
4.75 
3.81 
4.00 
3.24 
3.41 
3.28 
3.03 
2.72 
2.89 
2.76 
4.43 
3.60 
3.17 
2.98 
2.75 
2.63 
2.68 
2.50 
2.42 
2.18 
2.28 
Gram. 
3610 
—0.46 
3614 
— .94 
3618 
+ .19 
3622 
— .76 
3627 
+ .17 
3633 
— .13 
3657 
— .25 
3677 
— .31 
3689 
+ .17 
3697 
— .13 
Concord: 
3604 
3608 
— .83 
3512 
— .43 
3616 
— .19 
3620 
— .23 
3625 
— .12 
3631 
+ .05 
3655 
— .18 
3675 
— .08 
3687 
- .24 
3695 
+ .10 
Concord: 
3582.. 
3589.. 
3592.. 
3595.. 
3600.. 
Delaware 
3583.. 
3591., 
3593.. 
3596.. 
3601.. 
Aug. 2 
1.053 
227.6 
240.3 
2.20 
5.29 
Aug. 7 
1.059 
245.6 
259.7 
1.68 
4.36 
Aug. 13 
1.062 
231.4 
245.8 
1.28 
3.15 
Aug. 21 
1.074 
258.2 
277.2 
.98 
2.72 
Aug. 30 
1.076 
247.3 
266.0 
.85 
2.26 
Aug. 2 
1.073 
94.4 
101.4 
( 2 ) 
( 2 ) 
Aug. 7 
1.087 
117.6 
127.9 
( 2 ) 
( 2 ) 
Aug. 13 
1.094 
121.7 
133.1 
( 2 ) 
( 2 ) 
Aug. 21 
1.106 
125.2 
138.6 
( 2 ) 
( 2 ) 
Aug. 30 
1.114 
116.2 
129.4 
( 2 ) 
( 2 ) 
-0.93 
-1.21 
( 2 ) 
( 2 ) 
( 2 ) 
( 2 ) 
( 2 ) 
i Total loss in weight of acid in 100 berries: Catawba, 2.45 grams; Concord (Sandusky), 2.15 grams; Con- 
cord (Charlottesville), 3.03 grams. 
2 Data not complete. 
ANALYTICAL RESULTS ON THE WHOLE FRUIT SAMPLES. 
The data on the examinations made of whole-fruit samples are 
given in Table 6. These figures are necessarily percentages of the 
weighed fruit sample. Therefore, for the purpose of comparison, 
the results for sugar and acid of the juice samples given in Table 1 
are calculated to percentages and these data for both juice and whole 
fruit samples are brought together in Table 7. 
