The SciencesApparatus for Illustrating the Specific Gravity of LiquidsBy T. O'conor Sloane on September 10, 1887AdvertisementABOUT THE AUTHOR(S)Recent Articles by T. O'conor SloaneThe Disinfecting Boat of the New York State Board of HealthExperiments with Soap BubblesDust and Sand Figures on Membranes