—, notice of, xxxvii, 167.
Yeast, mode of making, vii, 378; x, 387.
Yenite, in Connecticut, viii, 59.
—, in Rhode Island, vii, 251; viii, 231.
Yelloly, on an acoustic instrument, xxxv, 313.
Yellow copper ore, see [Copper, sulphuret of.]
— wood, iii, 44.
Yew tree, longevity of, xxix, 353; xxxi, 358.
— —, —, J. E. Bowman, xxxi, 358.
Yorkshire Philosophical Society, xxi, 168.