76 



MASS. EXPERIMENT STATION BULLETIN 198. 



usually bear brands, originated b}- the sales organizations, which are un- 

 related to the varieties. 



Two lots of Wisconsin cranberries were sent to the laboratory from 

 that State b}^ Dr. N. E. Stevens. One variety was the well-known 

 McFarlin, and the other was a fancy western variety, of attractive size 

 and color, called Searl's Jumbo. The sugar content was a bit inferior to 

 our Cape varieties in both samples, but the fruit was sent by parcel post 

 in tight packages, and was probably in warm mail cars and rooms while in 

 transit. Such conditions induce a somewhat rapid change in sugar con- 

 tent, as shown by our storage experiments. 



The composition of the varieties is sho^A-n in the following table: — 



Table I. — Composition of Varieties of Cranberries in October. 



Variety. 



Water. Total Sugar. 



Total Acid. 



Early Black, 

 Howes (two lots), 



McFarlin 



Centennial, 



Searl's Jumbo (Wisconsin), 



McFarlin (Wisconsin), . . 



87.86 

 87.44 

 88.74 

 87.16 

 89.25 

 88.47 



4.12 

 3.95 

 4.08 

 5.59 

 3.48 

 3.75 



2.45 

 2.31 

 2.12 

 2 05 

 2.61 

 2.49 



Proximate Food Constituents. 



It has been noted that the cranberries undergo some change in com- 

 position during the storage period, although they remain firm and sound, 

 with no evidence of decay. The change is most pronounced when the 

 fruit is held at the higher temperatures of storage in a warm room, and is 

 barely noticeable at cold-storage temperatures just above the freezing 

 point. 



In the fall of 1917 changes in the fruit during storage were studied by 

 the analysis of berries kept in the storehouse at the cranberry bog. Fruit 

 of the Howes variety was sent to the laboratory at monthly intervals 

 directly from the storehouse, by express or parcel post, in small, ventilated 

 crates holding about S quarts. The first lot was shipped in October, soon 

 after the fruit had been stored, and the final lot in February. No attempt 



