On the senses, instincts, and intelligence of animals

Anat antennæ ants appear Arch auditory hairs auditory organ auditory rods beetles body chitinous color compound eyes connected cornea Crustacea crystalline cone cuticle Daphnias doubt eggs epithelial cells epithelium experiments Fabre female fibres Forel ganglionic cells genus Graber grasshopper Grenacher Hensen honey Hymenoptera hypoderm insects Insekten instance Kraepelin larva larvæ layer lens Leydig light lower animals male maxillæ membrane Microscopical Moreover mouth Müller's muscle nerve-fibre nest observations ocelli optic nerve organ of smell organs of hearing organs of taste organs of touch orifice Orthoptera otolithes outer palpi perceived perception Phys pigment pineal pits possess probably produce rays regards retina retinula rhabdom seems segment sensation sense of smell sense of taste sense-organ side skin sound species Sphex spiracles stridulating structure supposed surface tactile hair taste-organs terminal tibia trachea tympanum Ueber ultra-violet vesicles vibrations vision wasps Wiss yellow Zeit Zool