Miscelianeous Intelligence. 603 
17. Field Ornithology, comprising a manual for i Se ge pre- 
paring, and preserving birds, and a check-list of North American 
birds ; by Dr. Extrorr Couns, U.S. A. Salem, Mass., Naturalists’ 
Agency, 1874.—The scope of ‘this work is clearly satieate d by the 
title. It contains a large amount of useful information for those 
engaged in the study of ornithology. The directions are very full 
and clearly expressed, and the advice in regard to a great variety 
of matters connected with the subject of bird- ceeliatzie? is sensible, 
and will prove of great value to those beginning the s The 
Ill. Astronomy. 
oe New Comets.—Two _hew comets pee been, discovered this 
viz: one e by Winnecke, Apri 11th, and ae by Coggia, April 17th. 
the see of the solar system. e fac wathe orbits of most of 
periodie comets have a small inclination (counting from 0° to 
180°) is ee striking to stimulate inquiry in this direction. 
a smaller angle to the ecliptic than when e st discovered, pa that 
none — tllegscsbr larger inclinations, also suggests the possibil- 
ity of some such law of action. have not been able, however, 
in a arti examination of the subject, to — in the perturbing 
function, any evidence of such constant for H. A. Ny 
3. Cordoba Observatory.—We have reccared a letter r from Dr. 
Sellack of Cordoba, replying to Dr. B. A. Gould’s letter, pub- 
lished in this Journal, vol. vi, p. 399; it is endorsed by five of the 
Ss of the Unive rsity. We do not publish it, since, what- 
ever be said of some points connected with the subject, Dr. 
Sellack + Violated the law and usage of all observatories in publish- _ 
ing results obtained while under the employ of the Observatory, 
without the knowledge or approval of its Director.—Ebs. 
IV. MIscELLANEOUS SCIENTIFIC sifebacrmereg 
rare L. te . 
On the classification of the Rpnshopaornn series of sD : Jou 
Results of a series of eee or on the Pot or re sefomet of pine 
Sticks after having been subjected to a “pedoatiaa Dig betes 
Combinations of Mechanism imitating ppc processes ; Fairman Rogers. 
