c ¢ 
98 BOTANICAL GAZETTE. [ April. 
the following reagents produce retardation, viz., acetic acid, hydrochloric 
acid and probably nitric acid; (5) dilute solutions of quinine, of quinine 
aun: and carbolic acid produce a remarkably rapid shortening of 
the pit 
the Proceedings, or of remarks reported by the secretary. The two 
papers of 1860 are abstracts of observations on natural selection, about 
which much discussion arose in the Academy at the time, and are not 
strictly botanical. The articles began to be called Contributions with vol- 
me ix. As stated in a previous issue, the author, upon solicitation, has 
consented to place some of the remaining numbers in the hands of the 
Curator of the Harvard Herbarium, from whom they can be obtained at 
thirty-five cents each. 
Vol. I. 306-318 (1859) “Vol. VIII. Vol. Xie 
eee (1846) = 319-324 (1859) “ 145-200 (1870) 361-874 (1878) " 
i. ie 8B 326-327 (1859) “ = 243-296 (1870) Vol. XV. : 
9-160 (1849) A 1-415 (1860) 365-412 (1872)4 25-52 (1879)” 
323-325 (1852) 424-426 (1860) 620-661] (1873)— 1 XVI 
Vol. iT. OV. ys Vol IX. 78-108 (1880) 
. Pad ec 114-191 (1861) 187-218 (1874) ‘Vol. pt 
§ 230 (1 
L 94-97 (1854) vee Lol & i 
54 ol, . 39-78 (1874 pe Vol. Y r 
weiner! 37-80 (1862) “ 312-882 (1875) 1-96 (1883) “ 
xt a: Sa po 
by att 519-556 (1865) 71-104 (18 2 (1888)” 
) ~ 875)* 1-12 (1884) 
23 (187) oe ae Vol XT. 257-310 (1884)" 
oe | 827-401 (1867) ¢ 51-84 (1876) ol. BRE 
Rp —- 159-165 (1877) © a es Pees: ls 
ol. sae a: 
270-314 (1886) i 
yO acy | Kin, 
