8o FARM AND SCHOOL PROBLEMS. 



State Bulletins From Colleges and Experiment Stations. 



Experimental Studies of Plant Growth -Davis t 



Ohio State Normal College, Oxford, O. 



Experiments with Plants and Soils Edwards. . .University of Cal., Cir. 58 



Laboratory Exercises Maine State Department of Education 



Principles of Plant Production 



University of Missouri, Public School Bulletin, No. 2 



Seeds and Seedlings 



New Hampshire Col. of Agriculture, and Mechanic Arts, Bui. No. 3 



