286 Effective Farming 



weed and cultivate the soil of the mound of earth at frequent intervals 

 during the growing season, and an excellent crop of cucumbers should 

 be harvested. Keep a record of the cost of labor, materials, and yield. 



Grow the same number of hills of cucumbers in the garden in the 

 usual way without special attention to plant-food and moisture and 

 contrast the results with those of the cucumbers grown around the 

 barrel. 



3. Forcing crops of rhubarb. In the spring, crops of rhubarb can 

 be much hastened by artificially heating the plants in the following way : 

 Place an inverted half barrel over the clump of plants and pile manure 

 on top and on the sides of the barrel. The heat from the manure will 

 cause early growth. Leave a few clumps of rhubarb uncovered and 

 contrast the growth in the two lots. Why do the rhubarb stalks under 

 the barrel grow somewhat spindling? Why is there a difference in 

 color between the covered and the uncovered plants? 



REFERENCES 



Bailey, L. H., Cyclopedia of American Agriculture, Vol. II, pp. 274- 

 275; 279-281. The Macmillan Co. 



Taubenhaus, J. J., Diseases of Truck Crops. E. P. Button & Co. 



Davis, K. C., School and Home Gardening. The Lippincott Co. 



Cobb, Ernest, Garden Steps. Silver, Burdett and Company. 



Croy, Mae.Savell, Vegetable Book. G. P. Putnam's Sons. 



Green, Samuel B., Vegetable Gardening. Webb Publishing Co. 



Nolan and Green, Vegetable Gardening. Row, Peterson & Co. 



Reed, E. N., Late Cabbage. Wiley and Sons. 



Yeaw, F. L., Market Gardening. Wiley and Sons. 



Farmers' Bulletin 121, Beans, Peas, etc. as Food. 



Farmers' Bulletin 254, Cucumbers. 



Farmers' Bulletin 255, Home Vegetable Garden. 



Farmers' Bulletin 647, Home Garden in the South. 



Farmers' Bulletin 642, Tomato Growing in the South. 



Farmers' Bulletin 232, Okra : Its Culture and Uses. 



Farmers' Bulletin 220, Tomatoes. - 



Farmers' Bulletin 766, The Common Cabbage Worm. 



Farmers' Bulletin 818, The Small Vegetable Garden. 



Bureau of Education, Department of the Interior, Washington, D. C., 

 School 'Home-Garden Circulars 1-10. 



Cornell University, Ithaca, N. Y., Reading-Course Bulletin 30, Vege- 

 table Gardening, and Bulletin 34, Home-Garden Planting. 



