40 



were composed mainly of very fine silt and clay. The mean soil tem- 

 perature during the growing season at Rocky Spring was 76.1°, and 

 at East Hartford and Poquonock, 77.4°; but at Rocky Spring the dif- 

 ference between day and night temperatures was smaller than at the 

 other places. 



The moisture content of tobacco soils from a number of localities, 

 including those already mentioned, was determined and its variation 

 during the season observed. The average percentage of moisture 

 determined in the various soils was as follows: Soils from South 

 Deerfield and Hatfield, Mass., 19.5 to 22 per cent; from East Hart- 

 ford, Conn., South Granby, N. Y., and Rocky Spring and Donegal, 

 Pa., 14.5 to 17 per cent; from Bloomfield and Windsor, Conn., and 

 Saxon and Cana, K. C, 9.5 to 11.5 per cent; and soil from Poquonock, 

 Conn., 7.5 per cent. The range of variation of moisture content dur- 

 ing the season in Rocky Spring soil was 11 per cent; in soils from 

 Donegal, South Deerfield, South Granby, Cana, and Bloomfield, 3.5 

 to 5.5 per cent; in Hatfield, Mass., and East Hartford and Windsor, 

 Conn., soils, 2 to 3 per cent; and in soils from Poquonock, Conn., and 

 Saxon, N. C, 0.5 to 1 per cent. It is concluded that the Rocky Spring 

 soil is most subject to the influence of short droughts. The water- 

 holding capacity of the dry subsoil from Donegal was 52 per cent, and 

 of that from Rocky Spring 45 per cent. The soil at Donegal was 

 found capable of absorbing 3.25 per cent of moisture from the atmos- 

 phere, and the soil at Rocky Spring 3.09 per cent. In general the 

 soils from Lancaster County, Pa. , were found to be heavier and some- 

 what more moist than the best wrapper-leaf soils of other districts, 

 and, so far as examined, warmer and more equable in temperature. 

 The investigations further pointed out that these soils rank well in fer- 

 tility and did not contain injurious constituents in excessive proportion. 



Tobacco was grown on different kinds of soils b}^ the Louisiana 

 Experiment Station. 1 It is concluded from the results obtained on 

 old worn lands and pine thickets in northern Louisiana that such soil 

 is well adapted to the culture of the yellow or bright leaf varieties of 

 tobacco. 



In 1894 White Burle}^ tobacco grown on the red heavier sandy soil 

 of northern Louisiana gave as good or even better results than when 

 grown on the lighter soils, and Oronoco, a bright variety, cured as 

 brightly when grown on the one soil as when grown on the other. 

 Cigar leaf varieties also grew better on this type of soil than on the 

 lighter sandy soils. 2 It was found that the lighter the land the more 

 readily tobacco cured brightly. 



The North Carolina Station found that the light sandy soil of Gran- 

 ville County of that State produced a tobacco with a large percentage 



1 Louisiana Stations Bui. 20. 2 Ibid. 33. 



