xX TABLE OF CONTENTS. 
PAGE 
JAMES HYATT, 
A Scheme for the Indication, by Numbers, of Stages in the Flower- 
ing and Fruitage of Plants (March 27, 1871)...............-2008 200: 
GEORGE N. LAWRENCE. 
Descriptions of New Species of Birds from Mexico, Cental America, 
and South America, with a Note on Rallus longirostris (Janu- 
ary 50, 1872) (ttle) ec oiac) scared au miarsiels bidetiieteoys) Sore», i> oicboyl eee 155: 
OSCAR LOEW, 
On Hydrogenium-Amalgam (April 11, 1870)..............ee eee eee 6 
On the Question of the Existence of Antozone (October 10, 1870)... 54 
On the R6le which Chalk Plays in Butyric Fermentation (Decem- 
ayer onl bebe Ter Dak. einer nia at Ista er IAI GN ICReCICe WCMISIS Skee SEC RO TREROMERES O10 Gro © C 143 
On some New Derivatives of Albumen (February 138, 1871)......... 163 
On some Chemosmotic Phenomena and a New Theory of Fermen- 
tation (Noveraberets eS l) treated cetronevecctet teres ot eveyone e okerr rete nettefovetete 284 
DANIEL S. MARTIN. 
Notes on the Minerals of the Cornwall Mines, Pennsylvania (May 15, 
PET UV (tIELE)).). <cteye palo he eo Reis eaten ae ie ey ancicetaier aye kere Ale mare teen 240 
Coal of Orange County, New York (October 16, 1871).... ......... 259 
ORAN W. MORRIS. 
Abstract of the Comparative Meteorology of the Month of March 
for the Years 1869 and 1870, and of the Month of April, .1870 
(May OS 20) 3% co eftsehe -'coj ede sty RIeRine Sais iacutert = yeaa 15 
Report on Meteorology for the Month of May, 1870 ies 6, 1870)... 41 
Meteorological Report for the Month of September, 1870 (Octahent: 
CIC) a Sept Ok MAS SE REAL RAN OA GS AA us 2 45 
Report on Meteorology for the Month of November, 1870 (Decem- 
DOT Dew STO) a trotever loys Sec co, che ora rornilen Ma oteyeta tiara els whereas eae ane 129: 
Meteorological Report for the Month of February, 1871 (February 27, 
hel 0 es Nae Ae ee ren, SMEAR ae SRS 179 
Notes on the Meteorology of the Month of March, 1871 (April 3, 
MEST Leer s cd, el esate i. ofets oye eos e'ls fc (0 Le axpenyeton fabio cote e Siete eee eithaw yy eee 204 
Notes on the Meteorology of the Month of April, 1871 (May 1, 1871).. 235. 
Notes on Meteorology for August and September, 1871, with Re- 
marks on the Spring and Summer of the same Year (October 30, 
STL ect tee eset ete seta ct core Ore etic oie ole, c ie neha lee veld oie ita ass, 278 
Report on Meteorology for the Month of November, 1871 (Novem- 
Ber 27) 1871): 2 Saeeeres carstees tot tone eoohe oi biscase lola) st rte bie, a c/o keer 297 
J. S. NEWBERRY. 
On the Earliest Traces of Man Found in North America (April 4, 
1870); sce: Revers sk 5,302 cee eae etare ie tet atelier oc ale alata tone oin ep ietereae 2 
The Ancient Lakes of Western America, their Deposits and Drain- 
age (May 16, 1870) cjg termes ote aim 5)njo.0 Sieparetelemirtalbes! ve =t=heieia xiclountabe 25, 
