...By the use of logarithms, arithmetical computations which necessitatedlaborious application for several months could with ease be completed inas many days... 
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...The computation can be very greatly abridged by the useof logarithms...
George C. Comstock 「A Text-Book of Astronomy」
...The invention of logarithms, by Baron Napier, of Merchistoun, was foundto be of inestimable value to astronomers in facilitating andabbreviating the methods of astronomical calculation...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...The magnitudes play the same rôle in relation to the quantitiesof light as do the logarithms to the corresponding numbers...
Carl Vilhelm Ludvig Charlier 「Lectures on Stellar Statistics」
...Themagnitudes being themselves logarithms of a kind, it is evidently moreconvenient to use a simple value of the logarithm of the ratio of intensitythan to use this ratio itself...
Carl Vilhelm Ludvig Charlier 「Lectures on Stellar Statistics」
...Contains the following Tables:—Seven Figure Logarithms (1-100,000);Logarithmic Sines, Tangents and Secants; Natural Sines, Cosines, VersedSines, Chords, etc...
Joseph Lievesley Beeston 「Five Months at Anzac」
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