On the Senses, Instincts, and Intelligence of Animals: With Special Reference to Insects

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