192 BULLETIN OF THE BUSSEY INSTITUTION. 
IV. Taken from a bin in the house of the Rev. J. Freeman Clarke, 
Jamaica Plain. The ashes came from a hot-air furnace and open fire- 
places fed with hard wood, chiefly oak, from West Dedham, Mass. 
V. From open fires in the house of J. Elliot Cabot, Esq., Brookline, 
Mass. ‘‘ The wood burnt was mostly red oak, with a little soft maple, 
and perhaps a very little hickory.’’ 
VI. From a hot-air furnace fed with rock-maple wood (Acer sacchari- 
num), in the house of the Rev. W. O. White, Keene, N. H. 
VII. From an iron stove in the house of Mr. S. 8. Taylor, Dun- 
stable, Mass. The wood burnt was maple and apple. 
VIII. Beech-wood ashes from an iron stove in Monadnock Hotel, 
MLOVsUaNe) LL: 
IX. From an iron stove in house of Mr. Samuel Cunningham, Rock- 
ford, Winnebago Co., Illinois. The stove was fed with dry pin-oak 
(Quercus palustris), —the trunks of trees from four to eight inches in 
diameter. 
X. From an iron stove in house of Mr. John Smith, Rockford, Illi- 
nois. This stove was fed with green pin-oak, from trees similar to those 
described in No. IX. 
XI. From Louis Cabot, Esq., Manchester, Mass. The fire was fed 
with the trunks of old apple-trees. These ashes contained neither iron 
nor alumina. The sample was particularly white and clean. 
XU. From Mr. F. H. Appleton’s Broadfield Farm, West Peabody, 
Mass. Pitch-pine wood (Pinus rigida) burnt in an iron cooking stove. 
XIU. From a farm-house fire in Ipswich, Essex Co., Mass., fed with 
Alder wood (Alnus incana). 
It will be observed that none of the analyses recorded in the following 
table are ‘‘ complete.’’ No attempt has been made in any instance to 
estimate the lime, magnesia, or iron, or the sulphuric and silicic acids 
_ that are always contained in wood-ashes, or the soda and manganese that 
sometimes occur in them. I have confined my attention entirely to those 
constituents of ashes, viz., potash and phosphoric acid, that have espe- 
cial interest for the farmer, because of their money value. It will be 
noticed, moreover, that the percentage amounts of these constituents as 
given below refer directly to real ashes in the condition in which they 
were taken from household fires, — excepting only that the lumps of 
charcoal were sifted out. In case any one should wish to know how 
much lime, magnesia, or other of the commercially speaking unimpor- 
tant ingredients of wood-ashes are contained in any given sample of 
ashes, that information may readily be got, with sufficient accuracy for 
most practical purposes, from the tables of Professor Wolff (cited in 
Johnson’s ** How Crops Grow,’’ New York, 1868, p. 379). It is to 
be remarked, however, that Professor Wolff’s table having been con- 
structed for another purpose, the figures differ from those given in this 
article, inasmuch as they do not refer to actual ashes such as are bought 
