SUMMARY OF THE FOUR YEARS WORK. 



65 



In I'.xis there were four rains during the period of tasseling, a pre- 

 cipitation of 3.03 inches, and for the first half of the period of growth 

 live rains (4.39 inches) are recorded, the second half showing a pre- 

 cipitation of only 2 inches distributed in three rainfalls. The sugar 

 content for this year is the same as for 1906 in the case of the Stowell 

 : -<rivi.ii and -."> per cent higher for the Crosby, occupying an inter- 

 mediate position between 1906 and 1907. This coincides with the 

 trencral theory as to the effect of the rainfall, since the 1908 rainfall, 

 while fairly well distributed, is more abundant than that of 1907 

 and was rather infrequent in the early growing season and plentiful 



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 30k 



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hi 



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A 



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rf 



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TAS SUIN 



tsr WEEK 



PEft/OD Of DEVELOPMENT Of EAR. 



ED/BLE 

 STAGE. 



CX?(?5-ffX Kf/?- 



STOWELL 

 EVER- 

 GREEN. 



Fio. 9. Daily distribuUon of rainlaU by periods for 1906, 1907, and 1908 at the Maryland station. 



durinLT the last week of development, the reverse condition being 



iMe. 



At the Ma i viand station (fig. 9) the total rainfall for 1906 was excess- 

 ive, t \\ o especially heavy rains of over 2 inches occurring in the latter 

 part of the j:ro\\in^ period, three of about an inch, and five slight 

 rains, this condition being again accompanied by the minimum 

 content in the three years. The Crosby contained over 5 per 

 more sugar in 1907 than in 1906 and the Stowell Evergreen over 

 1 1 per cent more in both 1907 and 1908. During the period in which 

 the corn was tasseling three rains fell, a total precipitation of 1.3 

 inches. Four-tenths of an inch of rainfall was recorded for the 

 shower occurrini: in the following week. A succession of rains 



lull. IL'7 



