42 



BULLETIN 196, U. S. DEPARTMENT OF AGRICULTURE, 



Effect of varying the tveight of fruit. 



Weight of fruit (grams). 



Gross 



weight. 



Weight 

 of 



contents. 



Weight 



of 

 fruit. 



Weight 

 sirup. 



450 



Grams. 



900 



980 



1,015 



Grams. 

 760 

 840 

 875 



Grams. 

 355 

 405 

 455 



Grains. 

 405 



550 



405 



600 



420 







The foregoing experiments Were made "with Muscat grapes, and examinations of the 

 commercial pack from these sources gave similar results. 



Loganberries. 



The loganberry is the result of an accidental cross of a wild blackberry and a rasp- 

 beriy, made by Mr. J. H. Logan at Santa Cruz, Cal., in 1881. It is grown in a very 

 limited way in various parts of the United States, but for canning purposes only on the 

 Pacific coast. It resembles a large blackberry in size, is red in color, and has a distiac- 

 tive flavor of both the blackberry and the raspberry. It is grown and harvested in the 

 same manner as the blackberry . It is one of the fruits that most persons find improved 

 by cooking. It is very acid and needs a heavy sirup . Because of the limited supply 

 and the difiiculty of keeping them in the ordinary can, only a few are packed. They 

 bleach badly and cause pin holes, with resultant spoilage. The best results are 

 obtained with inside-laquered cans, but even these will not keep them in good condi- 

 tion for more than a few months. 



Effect of 



varying degrees of 



sirup on 



loganberries and the cut-out sirup. 





Density of sirup 



Gross 



Weight of 



Weight of 



Weight of 



Brix 



Reduc- 



Sucrose. 



Acidity. 



(degrees). 



weight. 



contents. 



fruit. 



sirup. 



reading. 



ing sugar. 



1. Weight of fruit, 360 



















grams; No. 2 can. 



















examined Oct. 8, 



















1912, Apr. 18, 1913, 













Grams. 



Grams 



Grams 



and Apr. 4, 1914: 



Grams. 



Grams. 



Grams. 



Grams. 



Degrees. 



per 100 cc. 



per 100 cc. 



per 100 cc. 





{ 667 



567 



287 



280 



6.1 



3.62 



0.47 



1.33 



Water 



\ 670 



675 



570 



575 



295 

 245 



275 

 330 



5.9 

 5.9 



3.25 

 3.06 



.00 

 .00 



1.23 





1.28 



10 



/ 680 

 \ 685 



580 

 585 



300 



280 



12.3 

 12.4 



8.50 



1.67 



1.27 





295 



290 



9.62 



.00 



1.25 





f 718 



618 



253 



365 



22.5 



16.37 



3.09 



1.11 



30 



\ 710 

 [ 720 



610 

 620 



255 

 260 



355 

 360 



21.4 

 21.6 



16.25 

 19.28 



1.43 

 .00 



1.16 





1.20 



40 



1 693 

 \ 693 



593 



303 



290 



28.6 



19.66 



5.35 



1.26 





593 



291 



302 



28.0 



19.94 



4.51 



1.26 





( 737 



637 



232 



405 



32.9 



21.87 



8.19 



1.21 



50 



\ 735 



635 



241 



39.4 



32.2 



23.87 



3.92 



1.15 





I 740 



640 



255 



385 



32.5 



29.88 



.08 



1.21 





( 750 



650 



237 



413 



37.9 



23.00 



11.16 



1.18 



60 



< 755 



655 



255 



400 



38.0 



24.00 



9.97 



1.22 





I 745 



645 



280 



365 



38.0 



34.78 



1.01 



1.15 



2. Weight of fruit, 550 



















grams; pack of 1913, 



















examined June 17, 



















1913, July 18, 1913, 



















and Jan. 25, 1914: 





















( 965 



825 



475 



350 



6.8 



4.25 



.00 



1.38 



Water 



{ 960 

 [ 950 



820 

 810 



445 

 430 



375 

 380 



7.4 

 7.0 



4.5 

 3.19 



.24 

 .00 



1.51 





1.52 





970 



830 



485 



345 



10.5 



6.0 



2.14 



1.38 



10 



\ 970 

 I 975 



830 

 835 



470 

 460 



360 

 375 



10.5 

 10.8 



5.75 

 6.41 



2.14 

 .45 



1.51 





1.52 





990 



850 



450 



400 



14.4 



6.5 



5.28 



1.38 



20 



\ 985 



845 



450 



395 



14.2 



8.75 



2.14 



1.49 





I 990 



850 



465 



395 



14.3 



9.69 



.76 



1.60 





( 1,000 



860 



425 



435 



19.2 



8.75 



9.02 



1.32 



30 



\ 1,000 



860 



455 



405 



19.7 



10.5 



6.65 



1.38 





995 



855 



455 



400 



19.8 



14.0 



1.50 



1.48 





1,020 



880 



385 



495 



26.2 



11.75 



11.64 



1.07 



40 



{ 1,020 

 I 1,020 



880 



420 



460 



24.6 



14.75 



7.13 



1.47 





880 



475 



405 



25.3 



19.17 



2.22 



1.45 





f 1,015 



875 



375 



500 



30.5 



11.75 



16.25 



1.01 



50 



{ 1, 030 



890 



425 



465 



27.7 



13 75 



11.64 



1.39 





I 1,025 



885 



480 



405 



28.1 



21.1 



3.58 



1.47 





( 1,040 



900 



380 



520 



36.3 



13.0 



19.95 



.92 



60 



\ 1,040 



900 



385 



515 



32.4 



13.25 



14.95 



1.39 





[ 1,040 



900 



465 



435 



31.8 



24.85 



3.87 



1.50 



