Rare Books

On the diurnal and annual inequalities of terrestrial magnetism, as deduced from observations made at the Royal Observatory, Greenwich, from 1858 to 1863; being a continuation of a communication on the diurnal inequalities from 1841 to 1857, printed in the Philosophical Transactions, 1863 : with a note on the lunodiurnal and other lunar inequalities, as deduced from observations extending from 1848-1863