Correction of Errors in several Mathematical Tables. 399 
Vega’s Logarithmisch-trigonometrisches Handbuch : 5th edition ; 
Leipzig, 182 
sin 0° 0 30’—40”, diff. 1”, for 124938 read 124939. 
cos 1° 16’ 20”, for 9-9998529 read 9-9998929. 
sin 2° 29’ 50”, for 8-6391970 read 86391971. 
And in the adjacent differences for 1”, instead of 483-0 and 482-6 
read 483-1 and 482°5. 
tan 5° 7’ 40”, for 8-9529683 read 8-9529682. 
cot 5° 7’ 40”, for 11-0470317 read 11-0470318. 
And in the adjacent differences for 1”, instead of 236-6 and 236-4 
read 236°5 and 236°5. 
cos 35° 26’, for 9-9110450 read 9-9110460. 
Cos 43° 53’, for 98577862 read 98577863. 
Vega’s Thesaurus Logarithmorum: Leipzig, 1794. 
Pp. 55, Log. 24626, for 3939751 read 3938751. 
p. 435, sin 12° 33’ 40”, for 9-3374109 read 9:3374209. 
Callet’s Tables Port. de Logarithmes: latest editions. 
Log. 60844, for 7842177 read 7842178. 
Log. 99018, for 9957141 read 9957142. 
Table I, p. 189, Log. 1099, for 7-00211 read 7-00215. 
Table III, p. 200, Diff. I, opposite 00132 Log. for 54589 read 
34589. 
Table for converting hyperbolic into common logarithms, 
P. 213, opposite 8, for 9032 read 9031. 
In the edition of 1843, for Log. 59179, instead of 7721610 read 
1721676; for Log. 59189, instead of 7722476 read 7722410. 
The last error is corrected in the edition of 1846. 
Lalande’s Tables de Logarithmes, étendues a sept décimales, par 
Mari i | 
arie: second impression ; Paris, 1835. 
,. Log. 1200, for 0791813 read 0791812. — 
P- 114, cosin 0° 1’, for 9-9999999 read 10-0000000 
p. 156, in the first column of differences, all the numbers are 
Wrong: the leading figure in each should be 3 instead of 5. 
In the columns headed 4-685, on pages 114, 115, 116, 117, about 
Seventy of the numbers are erroneous in the final figure. These 
numbers are generally such as result from subtracting, in each case, 
the logarithm of the proper number of seconds carried to seven pla- 
Ces of decimals, from the logarithmic sine or tangent carried to the 
Same number of decimals ; to secure to the difference the 
