546 SOUTIIBUN FIELD CROPS 



during the period of seliool vacation renders it difficult to arrange 

 for a comprefiensive line of exercises on this plant. However, 

 in regions where this is an important crop, it may be practicable 

 for pupils to prepare and plant a small tobacco bed and to par- 

 ticipate in the cultural operations connected ^^ath the early 

 growth of the young plants. 



Seeds of tobacco should be e.xamined and germinated by plant- 

 ing a definite number of seeds by different methods, some on 

 the surface, some in the shallowest possible furrows, and some 

 in furrows about half an inch deep. From the results students 

 should write conclusions as to the best depth for planting seed. 



Literature 



KiLLEBREw, J. B., and Mthick, H. The Tobacco Leaf. New 



York. 

 KiLLEBREW, .J. B. The Culture and Curing of Tobacco in the 



United States. Tenth U. S. Census (1880), Agriculture. 

 BoNDURANT, A. J. Tobacco. Ala. Expr. Sta., Bui. No. 64. 

 Whitney, Milton. Tobacco Soils of United States. U. S. 



Dept. Agr., Bur. Soils, No. 11. 

 Floyd, M. L. Culti'i'ation of Cigar-leaf Tobacco in Florida. 



U. S. Dept. Agr., Report No. 62. 

 McNess, G. T., and Ayres, L. W. Experiments in Growing 



Cuban Seed Tobacco in Texas and Alabama. U. S. Dept. 



Agr., Bur. Soils, Buls. Nos. 27 and 37. 

 ScHULTE, .J. I. The Work of the Agricultural E.xperiment 



Stations on Tobacco. U. S. Dept. of Agr., Report No. 63. 

 McNess, G. T., and others. The Improvement of Fire-cured 



Tobacco. Va. E.xpr. Sta., Bui. No. 166. 

 Davidson, R. J. [Chemical Composition of Tobacco.] Va. 



E.xpr. Sta., Buls. Nos. 14, oO, .51. 

 Carpenter, F. B. [Chemical Composition of Tobacco.) N. C. 



Expr. Sta., Buls. Nos. 90 A and 122. 

 Lee, J. G. La. E.xpr. Sta., Buls. Nos. 20, 25, 33. 

 Garman, H., and others. Ky. Expr. Sta., Buls. Nos. 28, 45, 



55, 63, 66, and 129. 



