286 Miscellaneous Intelligence. 
V. MISCELLANEOUS SCIENTIFIC INTELLIGENCE. 
1. Nineteenth Meeting of the American Association for the 
Advancement of Science, held in Troy, New York, August 17-25, 
ral Secreta Brazil, Pro 
was elected to that office for the session. glo att ssa at the 
great general interest under sa ar ee as at Chicago and Salem, 
yet the absolute value of the papers read at Troy was quite equal 
to that of those presented at either of the meetings mentioned. 
the papers read in General session, that by Lieut. C. E. 
, U.S. A., upon the Chemistry of the Bessemer ‘Poot 8s, ae 
des particular mention. It was an admirable analysis of the 
hich i 
in the conversion. An abstract of the paper, by Professor Barker, 
is deferred to our next number. 
The address of Col. J. W. Foster, the retiring President, was 
delivered on priomempree evening in the First Presbyterian church. 
It was upon “ The Latest Investigations in Geology and Ar chee- 
ology, with special eesti to the condition of Pre-historic man.” 
ong the various objects. of interest in and about Troy, none 
uienioned more attention than the various Iron-works. e pro- 
prietors of the Burden, the Albany, and the Rensselaer Iron-works, 
and of the Bessemer Steel-works provided special facilities for 
y ole 
— inspection. : olley, to whose mechanical skill the 
erful machinery of ‘the latter establishment is due, was par- 
duly attentive and courteous. The nal at Water 
wo excursions were made fr Troy; ‘Sis hoe Albany by invi- 
tation of the Albany Institute, "the other to Saratoga by invita- 
tion of the citizens of Troy. The time in Albany was divided 
between the Dudley Observ rvatory and the Genlogisal Hall A 
sumptuous entertainment at the State Library closed the day’s 
festivities. The Saratoga Seige apt gr an entire day, dinner 
eing served at Congress Hall at 4 p.m. The Association was the 
reci srt ae sine of various private "hospitalities : 
tion voted to hold its next meeting in Indianapolis, 
alias he —in cere tabi with an invitation from that city—on the 
7th of August, 1871. A committee was also appointed to arrange 
for the following meeting in San Francisco in 1872, upon invita- 
