ae eee or too 
160 Miscellaneous Intelligence. 
Cambridge and Edinburgh as a text-book, — commended by leadtog 
English astronomers as the best in the lahgt ve. The success of that 
a 
omy some of its most original and important improvements—as, for ex 
ample, the American, or chronographic, method of transits, the tele- 
graphic method of longitude, and Talcott’s method of “ “5 de—so we 
should also give to it a treatise of corresponding impor th an 
one, in fact, as the work before us—the ht complete othe shee ough that 
has yet appeared in any country or ss na 
Reserving for a following number of dite Journal a more elaborate re- 
view of these volumes, we can here only indicate in brief their scope and 
. leading features, 1e first volume, on Spherical Astronomy, discusses, 
with almost exhaustive completeness, the questions of parallax, refraction, 
time, latitude and longitude, eclipses, aberration, astronomical constants, 
ete. These discussions are characterized throughout by that remark- 
able generality and Ebtheniaticnl rigor, ernie belong sedate to the 
ods by Bessel, 
and others of his school. upon these m ethods, Pe Choad ee 
tk represents astronomy in its. most sasae and per ee forms of + 
research. Many of the investigations are, either wholl y or in part, origi- : 
nal—suth, for example, as Of ‘some: of. the formule for latitude and 
Be a 
nes: ae eae 
mer hy circle, aerate id azimuth triste finite dente elescope, equa- 
torial telescope, heliometer, and the filar and ring micrometers. Old 
instruments and old methods are wholly discar ee 
Not the least valuable part of the work is the Appendix of a hundred 
pages on the Method of Least Squares and Pierce’s Criterion—examples 
of the application of which in the discussion of observations abound 
throughout the work, A few an tables—altogether too few—are 
given at the clos, nearly half of them belonging to the author’s method 
of lunars. eel plates Shasteauive! of i instruments, sheet on a 
scale, are very fiche . oe sufficiently in detail for the purpose 
they were intended to The mechanical execution of the work- 
type, paper, &c.—are worthy of its scientific merits, and all that the mo 
fastidious could desi 
The eats, of Orbits and Perturbations—topics, in part at least, 
belonging to practical astronomy, and naturally looked for in a work li 
ee oe ould “ have been included without too great conde 
repare at an erat day. 
