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

Anat antennæ ants appear Arch auditory hairs auditory organ auditory rods beetles blue body chitinous color compound eyes cornea Crustacea crystalline cones cuticle Daphnias dark doubt epithelial cells epithelium esculine experiments Fabre facets fact female fibres Forel genus glass Graber green Grenacher half Hensen honey hypoderm inch insects Insekten instance Kraepelin larva larvæ layer lens Leydig light lower animals maxillæ membrane Microscopical molluscs Moreover muciferous Müller nerve-fibres nest observations ocelli optic nerve organ of smell organs of hearing organs of touch orifice Orthoptera otolithes outer palpi perceive perception pigment pineal pits possess probably produce regards retina retinula rhabdom seems segment sense of smell sense-organ sensitive side similar skin sound species spiracles stridulating structure supposed surface tactile hair terminal tibia trachea trough tympanum Ueber ultra-violet ultra-violet rays varnished vesicles vibrations violet vision wasps Wiss yellow Zeit Zool