—, anniversary of the Society for the Encouragement of Agriculture, vii, 381.
—, thunder-storms in, xx, 178.
[Syenite] and amygdaloid of Salem, Mass., iii, 232.
— of Massachusetts, along the Connecticut valley, vi, 28.
— in western Massachusetts, viii, 10.
— of Pennsylvania, viii, 236.
Sympathetic ink, xviii, 148.
Syphon, Buntem's improvement in, ix, 198.
Syphons, easy method of filling, W. Foster, xxviii, 268.
— of glass, xxiii, 387.f