Miscellaneous Intelligence. 79 
should be used as helps, not as an absolute reliance or as a me- 
chanical substitute for brains. 
The Polypetale occupy 276 pages; the Gamopetale, 346. 
Without reference to the scientific merits of this work—of which 
others will judge—we are free to pronounce its plan and its typo- 
graphy as unsurpassedly excellent. A. G. 
6. Quarterly Bulletin of the Nuttall Ornithological Club, 
Cambridge, Mass., vol. 1, No. 1, April, 1876. 28 pp. 8vo, with 
one beautifully colored plate.—The annual subscription for this 
valuable publication is only one dollar, or 30 cents per number. 
It is to be issued quarterly in numbers of 16 pages. 
ITV. AsStTrRonomy. 
1. Astronomical Tables, comprising logarithms from 3 to 100 
. New York, 1876.—We have 
large number of decimals, to 8, 10, 15, 20, 30, 60, and even 100 
places, by a method which the author claims as new. Or inary 
four-figure tables of logarithms, addition and subtraction log- 
arithms, log. sines, tangents, &c. Numerical tables, as primes, 
least. divisors, reciprocals, multiples, squares, &c., follow, which 
with the logarithms make about three-fourths of the tables. The 
remainder consists of about 40 astronomical tables of various 
kinds. In Parts 2d and 3d are explanations of the use and the 
i u 
cer- 
of 
Viations at the expense, in some cases, of clearness. a 
tainly succeeded in putting into a moderate size a large variety 
tter. 
has been investigated quite at length with numbers of from 
five to ten digits. It is found that the probability of error is in 
all cases expressed by the terms of the expanded binomial 
~ (a+b) 
where n is a function of the number of digits. Thus far a apd 6 
