the practical engineer; and it may be that the mixture of the Tables, which are now reprinted, with others of a less general character, and with collections of mathematical formulæ, prevented practical men from seeing how great an accession of calculating power was within their reach. It must be added, that the type and paper were of the worst quality, and that a combination of circumstances kept the work out of sight; so that it was rarely to be met with, even among second-hand booksellers (though often asked for), at the very time when no inconsiderable portion of the original stock remained with the person who had succeeded to the rights of the publisher over the rest of the edition. An arrangement having been made, by which the copyright of the portion described in the above title has passed into the possession of Messrs. TAYLOR and WALTON, that part of the original work has been republished, in the same type, and with the same precautions for insuring accuracy, as used in the lately published Tables of Logarithms. To all who are aware that very many of the instances in which calculation is required by the engineer, architect, &c., arise out of the necessity of finding, either by direct computation or by logarithms, those results which will now be tabulated and obtained by inspection, nothing need be said in favour of the undertaking. To the actuary and money calculator the Table of Reciprocals will be found of the highest value. The work is accompanied by an explanation of the mode of using the tables. The subjoined specimen will shew the extent of the parts and the arrangement of the whole. 1910 64 81 00 Cube. 6 869 835 701 43 6004587 12 3877959 5260389 39 Num. Square. 1951 380 6401 1952 38103 04 1953 3 8142 09 1954 38181 16 1955 3 82 20 25 1956 3 82 59 36 1957 3 82 98 49 1958 383 37 64 1959 3 83 76 81 1960 3 84 16 00 1961 384 55 21 1962 3 84 94 44 1963 385 33 69 1964 385 72 96 1965 386 12 25 1966 386 51 56 1967 3 86 90 89 1968 387 30 24 1969 387 69 61 1970 3 88 09 00 1971 388 48 41 1972 3 88 87 84 1973 389 27 29 1974 3 89 66 76 1975 390 06 25 1976 390 45 76 1977 390 85 29 1978 391 24 84 1979 3916441 1980 392 04 00 1981 392 43 61 1982 392 83 24 1983 393 22 89 1984 393 62 56 1985 394 02 25 1986 394 41 96 1987 39481 69 1988 395 2144 1989 3956121 1990 396 01 00 1991 396 40 81 1992 396 80 64 1993 397 20 49 1994 397 60 36 1995 398 00 25 1996 398 40 16 1997 398 80 og 1998 399 20 04 1999 399 60 01 4. 00 00 00 2000 Cube. 7426 288 351 7437 713 408 7449 150 177 7 460 598 664 7 472 058 875 7483 530 816 7 495 014493 7 506 509 912 7518 017 079 7 529 536 000 7 541 066 681 7 552 609 128 7 564 163 347 7 575 729 344 7 587 307 125 7 598 896 696 7610 498 063 7 622 111 232 7633 736 209 7 645 373 000 7657 021611 7668 682 048 7 680 354 317 7 692 038 424 7 703 734 375 7715442 176 7 727 161833 7738 893 352 7750 636 739 7 762 392 000 7 774 159 141 7785938 168 7 797 729 087 7809 531 904 7821 346 625 7833 173256 7845 011 803 7856 862 272 7868 724 669 7 880 599 000 7 892 485 271 7904 383 488 7916 293 657 7928 215 784 7940 149 875 7952 095 936 7 964 053 973 7976 023 992 7 988 005 999 8 000 000 000 44°1701256 12°4954651 5125577 44°1814441 12 4975995 5122951 44°1927596 12 4997333 5120328 44°2040722 12.5018664 5117707 44°2153819 12 5039988 5115090 44 2266888 12.5061304 5112474 44°2379927 12*5082612 | 5109862 44°2492938 12°5103914 5107252 44°2605919 12 5125208 5104645 44°2718872 12°5146495 5102041 44 2831797 12 5167775 5099439 44°2944692 12°5189047 5096840 44°3057558 12°5210313 5094244 44°3170396 12*5231571 5091650 44°3283205 12°5252822 | 5089059 44 3395985 12°5274065 5086470 44°3508737 12 5295302 5083884 44°3621460 12 5316531 5081301 44°3734155 12°5337753 5078720 44°3846820 12 5358968 5076142 44°3959457 12 5380176 5073567 44°4072066 12 5401377 5070994 44°4184646 | 12° 5422570 5068424 44°4297198 12 5443757 5065856 44 4409720 12 5464936 5063291 44°4522215 12 5486107 5060729 44°4634681 12 5507272 5058169 44°4747119 12.5528430 5055612 44°4859528 | 12*5549580 5053057 44°4971909 | 12°5570723 5050505 44 5084262 12°5591860 5047956 44 5196586 12 5612989 5045409 44°5308881 12 5634111 5042864 44°5421149 12.5655226 5040323 44 5533388 12*5676334 5037783 44 5645599 12 5697435 5035247 44 5757781 12°5718529 5032713 44 5869936 12 5739615 5030181 44°5982062 12 5760695 5027652 44 6094160 12 5781767 5025126 44 6206230 12 5802832 5022602 44 6318272 12.5823891 5020080 44 6430286 12 5844942 5017561 44 6542271 12 5865987 5015045 44.6654228 12.5887024 5012531 44 6766158 12 5908054 5010020 44 6878059 12 5929078 5007511 44 6989933 12 5950094 5005005 44°7101778 12 5971103 5002501 44 7213596 12 5992105 5000000 40 |