Magnetical Investigations, Part 2

3d Edition 7.5 inch plates annealing Average Weight bars or plates betwixt blister steel boiling Botany Bradford iron busks cast iron cast steel chapter cloth compared comparison compass needles comprising considerable curve degree of hardness deterioration determined deviating power diagram Dictionary employed Engravings exhibited experiments FREDERIKA BREMER hard plates hard steel hardened heat History investigations J. C. LOUDON JOHN LINDLEY linseed oil magnetic capacity magnetic condition magnetic energy magnetical powers magnetical properties magnetical qualities magnetised magnets of different mass Mean Deviation mean power method of deviations obtained original pairs plates or bars post 8vo Power in Combination proportional quality of steel ratio reduced respective SAMUEL LAING separately shear steel shewn shews single bar six plates steel from Bradford steel plates Table tangent temper temperature testing thick thin plates THOMAS KEIGHTLEY tion torsion TREATISE various Vignette Titles whilst Woodcuts