12 



One hund: v?d parts of Ash contained : 



Calcium oxide, 1.22 



Magnesium oxide, trace 



Potassium oxide, 33.23 



Sodium oxide, 28.05 



Iron and alumina oxides, 2.74 



Insoluble matter, 6.91 



The above stated liquid was obtained, according to the information 



received, by scouring raw wool with a solution of soda ash and soap. 



The most noticeable constituent of the material is its comparatively 



large amount of potash, — 1.09 per cent, in the liquid and 33.23 per 



cent, in the calcined residue or ash. The presence of a liberal amount 



of potash compounds iu raw wool is well-known. A sample of raw 



wool from So. America tested here in that direction some years ago, 



showed from 3.92 to 4.2 per cent, of potassium oxide. The washings 



of sheep and of raw wool may be used with a good effect on grass 



lands. Solutions like the one above described are, however, too 



concentrated for direct use ; they ought to be diluted with from ten 



to twenty times their weight of water, to render advisable their direct 



application on any growing vegetation. 



573—576. COMPOUND fp:rtilizers. 



I. Sent on by Lawrence Hardware Co., Lawrence, Mass. 



II. Sent on by J. M. Aiken, Prescott, Mass. 



III. Sent on by A. Bradley, Lee, Mass. 



IV. Sent on bv J. M. Aiken, Prescott, Mass. 



