1 О. Б. Шейнин Статьи по истории теории ... - Sheynin, Oscar

It is of course pleasing to me that you have adopted the system of
uniformly expressing the motions in terms of the century as the unit. I
have long found this the more convenient system when one is
accustomed to it, and I hope you have had the same experience in your
office.
I notice that on page VIII you give only the extended rigorous
formulae for the trigonometric reduction, without mentioning the
abbreviated formulae and tables which I have developed in my
Spherical Astronomy [1906]. These may be a little clumsy to use on a
first trial by one not accustomed to them; but I think that after one has
arranged his work he will find their use with the help of the tables very
easy in the case of stars not too near the pole. If Dr. Peters or anyone
else in your office has had experience in this line it would interest me
to know it.
You will doubtless be interested to hear that we hope soon to publish
approximate tables for several of the minor planets discovered by
James C. Watson. Notwithstanding that they are only approximate the
labour has been much greater than I should have anticipated.
Yours very faithfully, Simon Newcomb
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