ATLAS OF BIOLOGY. 



e.n. External nostril. 



e.r. External rectus. 



en. Eustacbian recess. 



ex.d. Extensor digitorum muscle. 



J'ni. Crural nerve. 



/.in. Foramen of Monro. 



f.tm. Filum terminale. 



ij. Gastrocnemius. 



!/.il. Ganglion of nerve-root. 



ij. Gastric braneh of vagus. 



(j.t. Gasserian ganglion. 



y.vg. Ganglion of the trunk of vagus. 



It.gl. Harderian gland. 



hp. Hypoglossal (1st spinal) nerve. 



h.s.c. Horizontal semicircular canal. 



hy. Hyoid arch. 



il. Ilium. 



i.n. Internal nostril. 



inf. Infindibulum. 



in.r. Inferior rectus. 



i.ob. Inferior oblique. 



ir. Iris. 



i.r. Internal reetus. 



I. Crystalline lens. 



lij. Laryngeal nerve. 



l.s. Lumbo-sacral enlargement. 



Ls.pl. Lumbo-sacral plexus. 



l.tm. Lamina terminalis. 



l.v. Lateral ventricle. 



Iv.b. Levator bulbi muscle. 



md. Medulla oblongata. 



mn. Mandibular nerve. 



m.ty. Membrana tympani. 



mx. Maxillary nerve. 



my. Myelon. 



na. Nasal sac. 



na'. Nasal bone. 



n.c. Neural canal. 



ol. " Olfactory lobe." 



ol'. Ventricle of the same. 



ol.n. Olfactory nerves. 



o.i/a. Orbito-nasal nerve. 



<>1>. Optic lobe 



op'. Ventricle of the same. 



p. Periosteum. 



pc. Pancreas. 



l>.c. Posterior commissure. 



pe. Peroneus muscle. 



p.tjl. " Pineal gland." 



pi. Palatine nerve. 



p.m. Pia mater. 



p.n. Peroneal nerve. 



ji.s.c. Posterior-vertical semicircular canal. 



pt. Pterygoid muscle. 



pt.b. Pituitary body. 



pul. Pulmonary branch of vagus. 



r. Retina. 



r.b. Retractor bulbi muscle. 



r.d. Dorsal ramus of glosso-pharyngoal nerve. 



r.d'. Dorsal ramus of vagus. 



s. Sacculus. 



*c. Sciatic nerve. 



scl. Sclerotic. 



s.mb. Semimembranosus. 



s.ob. Superior oblique. 



sp.n. Splanchnic nerve. 



s.r. Superior rectus. 



st. Stomach. 



ntji. Stapes. 



*!!!/ Sympathetic ganglion. 



sy.n. Sympathetic nerve. 



'. Tongue. 



t.a. Tibialis anticus. 



tb.n. Posterior tibial nerve. 



tli. Thalamencephalon. 



tr.f. Triceps femoris. 



ut. Utriculus. 



f. Vestibule. 



'. Diverticulum of the same. 



v.c. Vitreous chamber. 



v 3 . Third ventricle. 



v 4 . Fourth ventricle. 



TO. Vomer. 



/. to X. Cranial nerves I. to X. 



1 to 10. Spinal nerves 1 to 10. 



