438 PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
SUBSECTION C.— ARCHEOLOGY AND ETHNOLOGY. 
Indian Migrations. In Four Sections. Sec. 1, Physical Geography of North America, 
with reference to Natural hag Mi and Means of pice cil e ib 
its Areas. Sec.2, Agricultural Su ene and the Charac Prae 
Agriculture. Sec. 3,  lareiona of Roving and retra Village f end br uced 
from languages, traditions, and known migrations. Ds an 4, Migration of Village In 
or: 
The Constitution of Man as modified b ‘Light, Heat kad Cold. By Clinton Roosevelt. 
On the Botocudos of Brazil. By Ch. Fred. Hartt. 
Observations on the Languages of South America, and the Classification of the In- 
dian Nations thereof. By Porter C. Blis 
On the boring ip n 
e e vag eng trat re by specimens —— by R. W. 
Haskins, from Indian Graves on the banks o f the Ohio. By F. 
A ee Explanation of the uses of the Embankments of the he Most Builders. 
P Evidences. of high antiquity in the Kjækkenmædden Deposits of New UH. By 
Ont the gga TA of the native Tribes of Alaska, and the adjacent Territory. By 
SUBSECTION D.— MICROSCOPY. 
On " e of Microscopic Test Objects. By A. M. Edwards. 
Som an ** Opaque Illuminator,” a to an Immersion Objective, and 
— Punerdeon! Objective of Long Focal Dis tance. ickne: 
me Remarks on the Infusorial Deposits of Nort M. Edwards. 
Rote on a Pha - yi " Reproduction of a inm Domen Aliza p om io the 
genus CEdogonium. By A. M. Edwards. 
Mr. THOMAS MEEHAN read a paper “On the Laws which govern the 
production of sexes in Plants." Ata previous meeting he showed that 
extra vigor or vitality was accompanied by a greater cohesion or adna- 
tion of the leaves of conifere with tue stems. Similar laws, it seemed 
probable, governed the production of the sexes in plants. The female 
flowers of Norway spruces were always on the most vigorous branches; 
uction the whole spur dies. The long, dead, warty strings 
on Larch shoots are what have been male flowers. The same law can be 
traced more or less through all Conifere. us $ e same law, only 
in another — prevails. In others, male 
flowers a the opening rong of dy Rand formed during 
expiring eina force the : the e only after growth 
Corylus, Carpinus, and allies, the male flowers were also on the weakest 
parts. There were in some plants several waves of growth in the most 

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