330 Miscellaneous Intelligence. 
Pyrite on the lateral eres of Calcite scalenohedra; by G. HINRI 
Simple Arsenic Ap us for the certain dete ction of minute oS ‘of Arsenic 
in toxicological ali econo INRICHS. 
n the an e Probability as applied to the determination of mental exertions; 
y G. HIN: : 
Simple nie for pede for quantitative demonstrations in the Physical 
Laboratory; by G. Hz 
n pana rican an Iron Salsan that was seen to fall in South Africa; by J. 
LAWRENCE 
The peat i of the oo of Potash and Soda into Carbonates in the 
La C 
hg 
‘time - . by K. T. Cox 
Atmospheric Theory of an eliorated climate and an pee etapa: in} the Arctic 
Regions in opposition to the Galt Stream ers by wy 
A brief statement of effec tors er gems of OE var ina of the 
aes year in the vicinity of eis 
e Observations in Socceeiahia ‘oan in aca ‘Carolina ; by W. ©. 
ing 
On the peenie Mammals of the genus aig yy Sepa by E. D. Cope. 
On the Eocene genus Synoplotherium; by E Co 
On the Geological Age of the Coal he! Wheatus: Shs of D. CopPE. 
On the so-called sexual characters of Copepoda; by A. H. TUTTLE. 
Remarks on the magnifying powers of vs aa by R. H. Warp. 
On a Field-stage for clinical penis scopes; by R. H. Warp 
Respiration in Plants; 
Cireulation in Insects ; by Ez enn 
Organisms in Drin nking Water; by on W. Bascock. 
Media for the ee of Entomostroca ; by O. S. Wescorr. 
_ Washin ho Gorernm ent Print aS ‘Office Congres 
present se are y bel ‘by this Commission. There are two 
quite important ones by Mr. Rutherfurd, in which he oe reat ” 
opinion that the best form of movable instrument for p otograph- 
ing the transit would be a five-inch objective, with seventy menes 
focal distance, in a cell allowing of the application, in front of it, 
of a flint-glass_ lens of such curves as would shorten the focal dis- 
e 8 
et 
° 
) 
23 
= 
ot 
o 
= 
2 
2 
© 
® 
— 
ter. This is upon the method suc- 
cessfully employed by J Mr. Rutherfurd in his own observatory in 
New Yor 
Prof. Newcomb after discussion of the difficulties of the prope 
favors the method Res loyed by Prof. Winlock, which is to pnt 
the image of the s y a plane revolving mirror, into a fixed tel 
es ae of very Sey focal distance. 
wish that the Commission could have given us another p "i 
detailing the character and the results of the experiments ses ¢ 
for by the first appropriation of Congress. It would seem 
