+ 
610 OFFICERS. REMARKS. 
Remarks on recent improvements in Achromatic Condensers.— By Prof. R. H. WARD. 
on the use of the Microscope in Chemical Analysis.— By Prof. P. H. VANDER WEYDE. 
On bee observ ation of Electric Induction Spark by the Micro-spectroscope. — By Prof. 
DER WEYD 
On ‘Oblique Microscopic ‘Tiumination, and a new simple Apparatus for the same.— By Prof. 
ANDER WEYD 
On some observed chutes in Vo ella, ea H TO 
On a Standard of Powers for Microscopical ‘One ctives and Ere e ap — By Prof. WARD. 
On the Microscopic Structure of Eozoon Canadense.— By Mr. E. BICKNELL. 
NERAL OFFICERS OF THE INDIANAPOLIS MEETING. 
Presiden apana Asa Gray of Cambridge; Vice President, Prof. G. F. 
BARKER oF New Ha aven; Perm anent E ai Eh ths SEPH LOVERING of 
Sale 
coo a Apia Secretary, F. PuT of em; Treas- 
urer, AUX, Esq., of Philadelphia ‘Stoning piaeas present :— 
R cy ethos, LOVERING, PUTNA UNT, J. L. SMITH, SwaL- 
Low, HALL, J. E. HILGARD, WINEREE E cox, m: 
Oye hundred and seven papers lg entered, of which thirty-two were 
es ad in full in Section B, and eleven by title; ten were read in Subseckiee 
f Micros nara thirty in full in Section RA and seven by title; two in 
the nab Session; and fifteen were not entered on the daily pro- 
gram 
The | first morning (Wednesday, Aug. 16) soe given to opan m the 
work of the sections commencing in “the afternoon. Int ening the 
retiring president, Dr. Hunt, gave his ac cress and resigned he chair to 
the president elect. Friday and Saturday were giv o the excursion 
to the coal field of Clay county, and to Terre H: zo ‘where the Associa- 
ion was most cordially welcomed. The town of Brazil also welcomed 
the Association on the tri p to the ton tield, which with sev gE other cor- 
dial greetings, exten asociution f r to small 
num nembers, evinced the hearty appreciation in which the ob- 
j Associa ced a by the inhabitants of ana. The 
local secretary, Pro cers the § e, and citizens 
f Cox ate Hous 
who took a part in the reception, have le ft or Association in debt to them 
for their untiring efforts and genero 
of 
welco i 
the Mammoth Civ and the Enan Mounds on ie biais, visited 
after the adjournment, we sh: os pgi in future number 
e invitation to hold the next meeti n San Fi aces w a renewed 
by letter Aopen deat Board of T nae : hh che Academy es eee ‘and was 
accepted provided’ the necessary arrangements could be made. 
Ao psema from Dubuque was > cepted conditionally t to that of San 
Francisco. In preie to hold future meetings of the Association in the 
followin cities were received: Pittsburg, St. Louis, aie Arbor, and 
nwo 
A Co mmittee on the Geological Survey of Missouri, and one relating to 
Aton ions to be made at Niagara Falls, were appointed. 
ERS ELECTED FOR THE M oe or 1872. 
President, Prof. fw Lasrnexor Smirn of Louisville; Vice President, Prof. 
ben EX. WINCHELL of Ann Arbor; Pe ak rei See rear "i Re Josera Lov- 
NG om T E Gen neral Seer Prof. E x of Salem; 
Trensur e SV Keme of Philadelphia: Auliting Committers: Dr. 
D of Salem and Pro r H. L. Eustis of Cambridge; 
Sta nding Committee Ex Of m Messrs. luvin a sree? LOVERING, 
Morse, Vaux, ARKE AM. 
Committee aes ‘the Standing Committee to. arange for next meeting: 
Profs: J. L, Smrrn, Asa Gr: connection Peso a 
H Love 
committee from the Associati ; SMIT 
~~ wie. 2 pipe on rh aia, consisting | of Profs. J. L. 
The Association adjourned on Tuesday night, August 22d. 
cae oon 
beeen en eee 
ui 
