470 
States purposely for potash-making, 
395; loss of phosphoric acid from in 
burning, 199; weights of different kinds 
of, per cord, 206. 
Wood-ashes, agricultural value of, per 
bushel, 390; alkali value of, in terms 
of money, 390 ; amount of hygroscopic 
moisture in, 195; analyses of, 191, 198, 
207; contain less phosphoric acid than 
had been supposed, 198 ; contain a small 
proportion of some phosphorus com- 
pound insoluble in acids, 200; corrosive 
power of, 388; cost of transporting is 
small, 396; field experiments with, 84, 
88, 106, 122, 140, 313, 315; good effects 
of, in field experiments, 127, 141, 314; 
are held in high esteem by New Eng- 
land farmers, 157; may henceforth be 
devoted to agricultural use in the 
United States, 395; are more servicea- 
ble as a manure than any single potash 
salt, 127; a method of detecting the 
adulteration of, 396; often contain bits 
of bone, 193; proportion of coarse mat- 
BULLETIN OF THE BUSSEY INSTITUTION. 
ters contained in, 194; table of the 
alkalinity of, 389 ; their importance as 
a potassic fertilizer, 191, 312, 394; use 
of, for composting peat and other 
organic matters, 387, 388; use of, for 
recuperating exhausted grass land, 158. 
Woodland, of Eastern Massachusetts, 58; 
laws against the raking of leaves from, 
276. 
Woody plants, to be grown at the Bussey 
Institution, 6; catalogue of those grow- 
ing in Arnold Arboretum, 1 September, 
1874, 295, 1 September, 1875, 456; table 
of the amounts of phosphoric acid, pot- 
ash, etc., that have been found in the 
ashes of, 207; may increase diseases of 
fruit-trees, 452. 
XENOPHON, his treatise on the horse, 290. 
ZOOLOGY, see Applied Zoology. 
Zoospores, 825, 420; germination by, 326. 
Cambridge: Press of John Wilson & Son. 
