The SciencesThe Chemical Technology of Drying Oils, Oil Boiling, and BleachingBy W. N. Hartley on March 25, 1893AdvertisementABOUT THE AUTHOR(S)Recent Articles by W. N. HartleyThe Chemical Technology of Drying Oils, Oil Boiling, and BleachingMeasurements of the Wave Lengths of Rays of High Refrangibility in the Spectra of Elementary SubstancesOn Ice Making and Ice Machines