66 REPORT— 1873. 



These are the same as Callet 1853 [T. IX. and X.] (§ 4), and were pub- 

 lished separately, De Morgan states, to accompany Babbage's logarithms of 

 numbers ; they are in consequence printed on yellow paper ; but it is, both 

 in colour and texture, very inferior to that used by Babbage. 



Airy, 1838. Log sines and cosines from O*" to 24'', at intervals of 

 10^ to 5 places. The proper sign is prefixed to each quantity : no dififer- 

 ences. The sines are on the left-hand pages, the cosines on the right-hand. 

 As was remarked by De Morgan, this is an eightfold repetition of one 

 table : it occupies 48 pp. The table is improperly described as having been 

 " computed under the direction " &c. : it is, of course, only a simple re- 

 arrangement. 



The following is a complete classified list of tables on the subject of 

 this article contained in the works that are described in § 4, with several 

 other lists appended. 



Log sines, tangents, secants, and versed sines, — (To 7 places) Wimcir, 

 1853, T. B ; Hunoif, 1858, T. IX. 



(To 5 places) Eios, 1809, T. XYI. (also log coversed &c.). 



Log sines, tangents, and secants. — (To 10 places) Vlacq, 1628 and 1631 

 [T. II.]; Faxjlhaber (Canon), 1631. 



(To 7 places) Sir J. Moore, 1681 [T. III.] ; Sherwin, 1741 [T. IV.] ; 

 BoEDA and Delambre, 1800 or 1801, T. VI. (centesimal) ; Douglas, 1809 

 [T. II.]. 



(To 6 places) Dunn, 1784 [T. II.] ; Adams, 1796 [T. II.] ; Wallace, 

 1815 [T. II.] ; J. Taylor, 1833, T. XIX. ; Noeie, 1836, T. XXV. ; Trotter, 

 1841 [T. in.]; Griffin, 1843, T. 18; J. Taylor, 1843, T. 5; RuJiker, 

 1844, T. II. ; Coleman, 1846, T. XXIH. ; Eaper, 1846, T. IV. ; Domke, 

 1852, T. XXXV. ; Eaper, 1857, T. 68 ; Inman, 1871 [T. IV.]. 



(To 5 places) Maskelyne (Requisite Tables), 1802, T. XIX.; Bow.. 

 DITCH, 1802, T. XVII. ; Moore, 1814, T. V.'; Galbraith, 1827, T. V. ; 

 Geegort &c., 1843, T. IX. ; Hotjel, 1858, T. II. 



(To 4 places) Gordon, 1849, T. IX. (cosecants). 



Log sines and tangents (onh/). — (To 11 places) BoRDAand Delambre, 1800 

 or 1801 [T. III.] (centesimal), and [T. V.] (logarithmic diiferences of sines 

 and tangents). 



(To 10 places) Vlaco, 1633 [T. I.]; Roe, 1633, T. I. (centesimal 

 division of the degree) ; Vega, 1794, T. II. 



(To 8 places) John Newton, 1658 [T. II.] and [T. III.] (arguments 

 partly centesimal). 



(To 7 places) de Decker, 1626 [T. II.] ; Henrion, 1626 [T. II.] ; Norwood, 

 1631 ; Vlacq, 1681 [T. I.] ; Ozanam, 1685 ; Gardiner, 1742, and (Avignon), 

 1770 [T. II.]; DoDsoN, 1747, T. XXXIV.; Hentschen ( Vlacq), 1757 

 [T. I.]; ScnuLZE, 1778 [T. III.] and [T. V.]; Donn, 1789, T. III.; 

 Taylok, 1792 [T. III.] ; Vega, 1797, T. II. ; Lambert, 1798, T. XXVI. ; 

 HoBEETandlDELEE, 1799 [T. I.] (centesimal) ; Vega, 1800, T. II. ; (?) *Salo- 

 MON, 1827, T. IX.; Bagay, 1829, Appendix; Lalande, 1829 [T. U.j; 

 Hasslee, 1830 [T. IL-IV.]; Getjson, 1832, T. VII.; Turkish logarithms 

 [1834] ; Hulsse's Vega, 1840, T. II. ; Shortrede (Tables), 1844, T. III., 

 and 1849, Vol. II. ; Kohler, 1848 [T. IV.'\ ; Callet, 1853 [T. VI.] (cente- 

 simal), [T. IX.] and [T. X.] ; Beemiker's Vega, 1857, T. II. and III. ; 

 HuTTON, 1858, T. VIII. ; Scheon, 1860, T. H. ; Dupuis, 1868, T. VI., VII., 

 and VIII. ; Beuhns, 1870, T. II. and III. 



_ (To 6 places) Oughtbed, 1657 [T. I.] (centesimal division of degree) j 

 DucoM, 1820, T. IX. ; ITRsiNtrs, 1827 [T. II.] and [T. V.]; J. Taylor, 1833, 



