EFFECT OF TEMPERATUKE. 



13 



STATEMENT OF RESULTS. 



The kind and variety of fruit, the locality where grown, date, weight 

 of fruit used, the interval during which the carbon dioxid was collected, 

 the average temperature during this period, and the carbon dioxid 

 formed expressed in milligrams per kilogram of fruit per hour, are 

 given in Table 1, following. The data have been calculated also in 

 terms of the volume of carbon dioxid per kilogram per hour. The time 

 in hours which will be required for the fruit to give off its own volume 

 of carbon dioxid has been calculated on the assumption that 1 kilo- 

 gram of fruit occupies 1,000 cc. The results in terms of milligrams 

 of carbon dioxid per kilogram per hour are given graphically in figs. 

 4 to 8, inclusive. In plotting, curved lines have been used in con- 

 necting the several determined points. While straight lines are 

 more commonly used, particularly when but few points are deter- 

 mined, it is believed that the curves show better the constantly accel- 

 erated activity as the temperature rises. They were drawn with a 

 spline and spline weights. 



Table 1. — Effect of temperature on the rate of respiration of fruits. 



Kind and variety of fruit. 



Locality where 

 grown. 









A pi 



o o 





Carbon 









2° 





dioxid. 



Date 

 received. 





S3 



■a §"g 









CO -H 



B "> 



3 ft 



H 



II 

 Ej w> 



&2 



•Sug 



■gss 



||l 



> 







,3 



.5? 





03 



> 





1910. 



Grams. 



Hours. 



°c. 







June 



10 



1,000 



18.3 



23.9 



130 



72.0 









18.3 



10.1 



41 



21.6 



June 



17 



1,000 



18.0 



26.2 



151 



84.3 









18.0 



10.6 



46 



24.3 









20.0 



2.0 



17 



8.7 



June 



18 



1,000 



20.0 



28.4 



284 



159.7 









20.0 



11.4 



72 



38.2 









22.0 



1.9 



20 



10.3 



June 21 



1,000 



17.5 



28.7 



241 



135.7 









17.0 



11.7 



64 



34.0 









17.5 



1.9 



25 



12.8 



July 



2 



1,000 



19.5 



30.8 



311 



176.4 









19.8 



10.5 



52 



27.5 









20.3 



2.1 



22 



11.4 



July 



7 



1,000 



18.7 



30.3 



222 



125.7 









18.5 



10.2 



60 



31.7 









19.5 



1.8 



22 



11.3 



July 



8 



1,000 



26.7 



30.8 



239 



135.5 









25.8 



9.4 



55 



29.0 









25.3 



1.2 



-18 



9.2 



June 



28 



1,000 



16.8 



29.0 



274 



181.8 









17.0 



10.9 



58 



30.7 









17.5 



1.9 



22 



11.3 



Julv 



16 



1,000 



24.1 



30.2 



56 



31.7 









23.9 



11.8 



13 



6.9 









24.5 



1.8 



7 



3.4 



July 



17 



1,000 



24.1 



29.6 



48 



27.1 









24.1 



9.1 



10 



5.3 









24.5 



0.8 



5 



2.6 



Hi 



<u c3 co 

 H 0+3 



0O3 



a > & 



Eh 



Strawberries: 



Martin's New Queen. 



Gandy 



Black raspberries: 

 Kansas 



Arlington, Va 



Washington, D.C. 



West Fall; 

 Church, Va. 



Do. 



.do. 



Red raspberries: 

 Cuthbert 



Anne Arundel 

 County, Md. 



Blackberries: 



Eldorado, first day's run. 



Eldorado, second day's run. 

 Wild 



Maryland . 

 ....do..... 



Red currants: 



Fay, first day's run . 



Fay, second day's run. 



New York . 

 ....do 



Hours. 

 13.9 

 46.3 

 11.8 

 41.2 

 114.9 



26.2 

 97.1 

 7.4 

 29.4 

 78.1 



5.7 

 36.4 



87.7 



8.0 

 31.5 



88.5 

 7.4 



34.5 



108.7 



5.5 



32.6 



88.5 



31.5 

 144.4 

 294.1 



36.9 

 188.7 

 384.6 



