170 
MR FRANK ROBBINS ON 
logarithms, and, what is even more important, is less fatiguing to eye and 
to brain. 
Mr J. Abner Sprigge, of H.M. Nautical Almanac Office, examined and checked 
the whole work as at first arranged, and found one wrong figure in log A and a 
small error in e at the eighty-fifth decimal. But it is to Dr Cargill G. Knott 
that special thanks are due, seeing that he gave me access to Dr Sang’s standard 
MS. tables, and by his advice enabled me to finish the work in a satisfactory 
manner. 
REFERENCES. 
(1) Houel, J., Recueil deformities et de tables numeriques, troisierne edition, nouveau tirage, Paris, 1901. 
(2) Supplement logarithmique par Leonelli, a, Bordeaux. An onze. Extrait des Publications de la Soci6te 
des Bibliophiles de G-uyenne, Paris, 1875. 
(3) Gray, Peter, Tables for the formation of Logs and Anti-logs to twenty-four or any less number of places, 
London, 1876. 
(4) Zimmermann, Dr H., Rechentafel nebst Sammlung haufig Gebrauchter Zahlenwertlie, Berlin, 1899. 
(5) Glaisher, J. W. L., Trans, of the Cambridge Philosophical Society, vol. xiii, 1883, pp. 246, 247, 
and 252. 
(6) Degen, C. F., Tabularum Enneas, Copenhagen, 1824. 
(7) Sang, Dr Edward, MS. Tables of Logs of Nat. Nos. to Twenty-eight Decimal Places. 
