18 



On Salt as a Manure, and as a Condhncnt 



There were no indications of either gypsum or phosphate 

 of linie. 



It will appear from the above analysis that these experi- 

 ments could not perhaps have been tried on a soil better 

 adapted to give impartial results ; for of its component parts 

 there is no ingredient (the oxide of iron possibly excepted) 

 of suflicient activity to augment or restrain the peculiar 

 energies of the substances employed. 



On the 14th of April 1804, a certain portion of this soil 

 was' laid out in beds one yard wide and forty long. Of 

 these, twenty-iivc were manured (the first excepted) as fol- 

 lows : 



No. I. No manure. 



2. Salt, \ peek. 



3. Lime, one busliel. 



4. Soot, one peck. 



5. Wood-ashes, two pecks. 



6. Saw-dust, three bushels. 



7. Malt-dust, two pecks. 



8. Peat, three bushels. 



(). Decayed leaves, three bushels. 



10. Fresh dung, three bushels. 



11. Chandler's graves, nine pounds. 



12. Salt, lime. 



13. Salt, lime, sulphuric acid. 



14. Salt, lime, peat. 



15. Salt, lime, dung. 



16. Salt, lime, gypsum, peat. 

 1 7. Salt, soot. 



18. Salt, wood-ashes. 



19. Salt, saw-dust. 



20. Salt, malt-dust, 

 ai. Salt, peat. 



22. Salt, peat, bone-dust. 



23. Salt, decayed leaves. 



24. Salt, peat-ashes. 



25. Salt, chandler's graves. 



On the same day the whole was planted with potatoes, 

 a single row in each bed ; and, that the general experiment 

 nught be conducted with all possible accuracy, each bed 

 received the same number of sets. 



On the 14th of May, a few days after the plants ap-i 

 peared above ground, the whole was carefully examined, 

 and the comparative excellence of each row (as far at least 

 as could be judged of by appearances) was as carefully re- 

 gistered. 



N. B. The quanti- 

 ties of each ingre- 

 dient the same as 

 when used sinalv. 



