MANURIAE VALUE) OF ASHES, MUCKS," ETC. 



67 



POUNDS OF PHOSPHORIC ACID, POTASH AND LIMB IN 100 POUNDS 

 WATER-FREE ASH OF THE WOOD OF THE TREES INDICATED. 



Kind cf wood. 

















c 





















o~ 



ed 





C 



— OS. 



- 



5ugar Maple 

 Soft Maple ., 

 Black Ash .. 



Oak 



Birch 



Elm 



Beech 



Apple 



White-Ash . 

 Bass wood ... 



Poplar 



Hemlock 



Pine 



Cedar 



Spruce 



9.31 

 9.52 



25.30 

 9.39 

 8.5S 



35.37 

 7.58 

 4.84 



16.88 

 9.39 



10.42 

 8.73 



11.22 

 3.30 



45.24 

 41.97 

 49.04 

 43.54 

 37.10 

 23.64 

 41.21 

 44.93 

 37.14 

 33.42 

 28.38 

 45.83 

 20.28 

 49.06 

 25.82 



As stated above, the results of the analysis of single specimens 

 of wood can be taken as indications only. In two instances this 

 Station has analyzed the ash of known woods with results differ- 

 ing from the above as follows : 



PHOSPHORIC ACID AND POTASH IN IO11 POUNDS ASH OF BIRCH AND 



CEDAR. THE RESULTS OF MAINE ANALYSES COMPARED WITH THOSE 



OF CANADA. 



Phosphoric acid. Potash 



Birch, Maine analyses 6.05 12.04 



Canada analyses 1.81 8.58 



Cedar, Maine analyses 1.91 5.09 



Canada analyses 98 3.30 



With allowance for individual variations the results are 

 striking- and interesting. The popular idea of the low value of 

 beech ashes is confirmed but the prevailing belief in the low 

 value of soft wood ashes as compared with hard wood ashes does 

 not seem to be well founded. The potash in maple, oak, birch 



