"Mature stapes of fowl, about x4; after Parker. st, its foot, fitting fenestra ovalis; mst, main shaft,…
"Transverse section of the arm of a Starfish near the disc. Diagrammatic. Lettering as in preceding…
"Pectoral girdle and fin of a Teleost. br.o., branchial ossicles; c, coracoid; cl., clavicle; f.r.,…