( 



96 REPORT— 1873. 



Domkey 1852. T. XXX. Quadrate der Minuten des Stundenwinkels, viz. 

 '^'"'"fioj froma;=l to cr=15, and from y = l to y=QO, to one decimal 



place; thus corresponding to 8' 20" the table has 69-4; for 8' 20" = 8^ = 

 8-33 . . . , and its square, retaining one decimal place, is 69-4. 



T. XXXII. Six-figure logarithms to 100, and from 1000 to 10,000, with 

 differences : aU the logarithms written at fuU length. 



T. XXXIII. Log sines, tangents, and secants to eveiy quarter point, to 

 6 places. 



T. XXXIV. Log sines and tangents for every second, for the first two 

 degrees, to 6 places : all the logarithms written at length. 



T. XXXV. Log sines, tangents, and secants, to every minute of the 

 quadrant (arguments also expressed in time), with differences, arranged semi- 

 quadrantally : all the logarithms written at length. 



T. XXXVI. Natural sines to every minute of the quadrant, to 6 places, 

 arranged quadrantally. 



T. XXXVII. Logarithmen der halbverjlossenden Zeit, viz. log cosec x from 

 .^=0'' to 07 = 3'' 59"" 55^ at intervals of 5', to 5 places, with proportional parts 

 for seconds. 



T. XXXVIII. Logarithmen der Mittelzeit, viz. log 2 sin x, from ir=0'' 

 to.t'=3'' 59" 55' at intervals of 5', to 5 places, with proportional parts for 

 seconds. 



T. XXXIX. Logarithmen des Stundenwinkels, viz. log versed sine x, from 

 x=0^ to x=7^59"' 55' at intervals of 5', to 5 places, with proportional parts 

 for seconds. 



T. XL. Proportional logarithms for every second to 3°, to 4 places ; the 

 same as T. 74 of Eaper. 



T. XLVII. and XL VIII. occupy one page, and are for the conversion of 

 arc into time, and vice versa. 



The other tables are nautical. 



In all the tables the logarithms are written at full length ; the type is thin 

 and very clear, the figures having heads and tails. 



T. XXX. was calculated from this work; T. XXXII., XXXIIL, and 

 XXXV.-XL. were taken from Norie's ' Epitome of Navigation,' (they are 

 Maskeltne's tables ; but see Bowditch, 1802, T. XIII.) and T. XXXIV. 

 from Callet. 



On the accuracy of this work see the tract of Gernerth's referred to in 

 § 3, art. 13 (p. 55). There was a second edition in 1855 (Gernerth). 



Donn, 1789. T. I. Seven-figure logarithms to 10,000, with differences. 



T. II. Log sines and cosecants to every quarter point, to 7 places. 



T. III. Log sines and tangents and natural sines for every minute of the 

 quadrant, to 7 places. 



T. IV. Log I elap. time, mid time, and rising (see explanation of the 

 terms under T. XVI. of Maskelxne, 1802), for every half minute to 6'', to 

 5 places. 



T. V. Log versed sines and natural tangents and secants for every 10' of 

 the quadrant, to 4 places. 



The other tables are nautical. 



We have also ' The British Mariner's Assistant, containing forty Tables . . ' 

 London, 1774, 8vo (352 pp. of tables), the tables of which are the same as 

 those described above. 



Douglas, 1809. [T. I.] and T. I. Supplement, and T. II. Supplement. 

 Logarithms of numbers to 10,999, and from 100,000 to 101,009, to 7 places 

 (without differences). 



