6 MASS. EXPERIMENT STATION BULLETIN 168. 



interest or value are arranged in groups, according to the purposes of the 

 tests, in the following list. 



(a) To determine the General Relationship of Ventilation (Relative Hu- 

 midity) to the Rate of Decay. — The five distinct series of tests under this 

 head were as follows : — 



1. Eighty-four bushels of Early Black berries (4 bushels from each of the 

 21 fertilizer plots) were stored in bushel picking crates (with slatted bottom 

 and sides) right after they were picked, just as they came from the bog 

 (i.e., without being run through the separator or otherwise cleaned). 

 Table 3 shows the results of this series of tests in detail. Plots 1 and 2 

 were picked on September 14; 3 to 20, inclusive, on September 16; and 21, 

 on September 17. 



For the first month these boxes were stacked in the basement of the 

 station screen-house without regard to order, but during the rest of the 

 storage period the four from each plot were placed in a stack by themselves. 



Cup samples were taken for making the examinations by which the 

 counts, summaries of which are given in Table 3, were obtained. The 

 cup used was the inspectors' cup of the New England Cranberry Sales 

 Company, and the examinations were made, under the writer's super- 

 vision, by the "screeners" who had been employed at the station during 

 the fall, New England Cranberry Sales Company's inspectors' hand- 

 graders being used to facilitate the work. The dates of these examina- 

 tions ranged from January 3 to January 7, inclusive. As indicated in 

 Table 3, entirely and partly decayed berries were counted together in 

 determining the percentages of rot. 



"What is called in this report the "five-sample" method was used in 

 making these examinations. In this method, five samples from each box 

 were examined: one sample, Te (1) and Te (2), being taken from the top 

 or surface berries at each end of the box; one sample. Me (1) and Me (2), 

 being taken from the berries halfway between the top and the bottom of 

 the box at each end; and one sample. Mm, being taken from the very 

 center of the box. 



