Inorganic “Feeding”

Abstract

AT the January meeting of the Physical Society, and also at the recent conversazione of the Royal Society, I showed an experiment in which one globule of liquid (dimethyl aniline), floating on the surface of water, captures and absorbs other floating globules (orthotoluidine), the movements resembling those of an amœba. I have now succeeded in photographing the process, and in the accompanying print the larger globule is seen in the act of engulfing the smaller and darker-coloured one. To secure contrast, the orthotoluidine was coloured with indigo.