Spider, entire young specimen, w.m.
Spider, leg with comb, w.m.
Spider, spinneret w.m.
Araneus, cross spider, spinneret w.m.
Spider, mouth parts of male w.m.
Spider, mouth parts of female w.m.
Spider, epigyne of adult female w.m. *
Spider, sagittal l.s. of abdomen for general study
Spider, sagittal l.s. of abdomen showing spinneret and spinning glands
Spider, sagittal l.s. of abdomen showing the book or trachea lung
Spider, sagittal l.s. of abdomen with epigyne and ovary
Spider, sagittal l.s. of abdomen showing l.s. of the dorsal vessel
Spider, t.s. of cephalothorax showing the central nervous system
Spider, cephalothorax with central nervous system l.s.
Salticus, spider, sec. of cephalothorax showing the telescope eyes *
Spider, portion of cobweb w.m.
Opilio sp., shepherd spider, sagittal l.s. of the body
Opilio sp., mouth parts w.m.
Scorpion, t.s. through young specimen
Scorpion, sagittal l.s. through young specimen
Scorpion, section selected to show the poison gland
Scorpion, section selected to show the book lung
Scorpion, entire young specimen w.m. *
Argas, six-legged larva w.m.