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1907-8.] Dr Edward Sang’s Tables. 
IX. — Dr Edward Sang’s Logarithmic, Trigonometrical, 
and Astronomical Tables. 
At the Council Meeting of 5th July 1907, the following communication was 
received from the Misses Sang, daughters of the late Dr Edward Sang : — • 
“We, the daughters of the late Dr Edward Sang, LL.D., F.R.S.E., 
owners under his will of his collection of MS. Calculations in Trigonometry 
and Astronomy, having by letter of gift of date 12th February 1906 given 
the above collection to the President and Council of the Royal Society of 
Edinburgh, and having, by the cancelling on the 24th May 1907 of their 
acceptance thereof, received back the collection from the President and 
Council of the Royal Society of Edinburgh, do hereby give the said 
collection to the British Nation, and do hereby appoint the President and 
Council of the Royal Society of Edinburgh custodiers of the said collection, 
in trust for the British Nation, with power to publish such parts as may be 
judged useful to the scientific world. 
“We do also hereby give into the custody of the President and Council 
of the Royal Society of Edinburgh, in trust for the British Nation, the 
duplicate Electrotype Plates of Dr Sang’s 1871 New Seven- Place Table of 
Logarithms to 200,000, with power to use them for reproducing new 
editions, or publishing extended tables of seven-place logarithms. 
“We would express the hope that Dr Sang’s idea and plan for repro- 
ducing an authoritative and accurate Logarithmic Table, as explained in 
the last paragraph (p. 6 of the preface to the 1871 New Table of Seven- 
Place Logarithms), will be borne in mind, and given effect to. 
“(Signed) Anna Wilkie Sang. 
“( „ ) Flora Chalmers Sang. 
“Oakdale, Broadstone Park, 
Inverness, 1st July 1907 .” 
The manuscript volumes number forty-seven in all, the contents of 
thirty-three of which are in transfer duplicate. Volumes 1 to 3 contain the 
details of the steps of the calculations on which the results contained in the 
next thirty-six volumes are based. 
Volume 4 contains the logarithms, calculated to 28 figures, of the 
prime numbers up to 10,000, and a few beyond. 
