nitrate of soda has the [)o\ver of absorbhig moisture from tht' atmos- 

 phere, and the increased amount of moisture in contact with tlu; 

 leaves may have caused a more rapid development of mildew. 



18«y AND 1890. 



In the same houses was planted another crop in new soil with 

 twelve plots, fertilized and unfertilized alternating. The following 



fertilizers were used : 



Scale of Excellence of Crop. 



Plot No. 1. Sulphate' Potash, 5 



" " 2. Nothing, 3 



" " 3. Sulphate of Ammonia, 1 



" '' 4. Nothing, 3 



" " 5. Nitrate of Potash, 2 



" " 6. Nothing, 3 



" " 7. Nitrate of Soda, 3 



" " 8. Nothing, 3 



" " 9. Muriate of Potash, 4 



" " 10. Nothing, 3 



" " 11. Bone Black, 6 



" " 12. Nothing, 3 

 In this scale 1 indicates the greatest perfection of growth. 



EXPLANATION. 



In the houses where the above was grown an attempt was made 

 to grow carnations and lettuce at the same time and the result w:is 

 that the temperature was kept too high for the lettuce, more or less 

 mildew having developed on all of the plots, but where the fertilizer 

 was most active there was much less, and in the first and last experi- 

 ment, that treated with the sulphate of ammonia, and in the second 

 test, the bone black, gave the best results. 



TOMATO PLANTS. 



When the second crop of lettuce was taken off, the soil was care- 

 fully worked over in such a manner as to leave that of each plot in 

 its respective place, and tomato seeds were sown. 



Scale of Excellence of Crop. 



Plot No. 1. Sulphate of Potash, 2 



" 2. Sulphate of Ammonia, 3 



" 3. Nitrate of Potash, 4 



" 4. Nitrate of Soda, 6 



" 5. Muriate of Potash, 5 



" 6. Bone Black, (dissolved) 1 



