Nature, Volume 32

according acid action animals appears arrangement become body called carried cause coast collection colour communications complete connected considerable contains continued course described determined direction effect electric examined exhibited existence experiments fact feet fish further give given heat important inches increase interesting island Italy June known Lake less light March matter means measure meridian method miles motion natural nearly notice object observations obtained origin passing period plants position possible practical present probably produced Prof published question received recent recorded referred regard region relation remarkable researches rise river scientific seems seen side similar Society species spectrum surface taken temperature tion University various whole