JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATES II AND III, 
Tllustrating Dr. H. Lawson’s paper on the General Anatomy, 
Histology, and Physiology of Limax maximus (M.-Tand.). 
PLATE IL. 
Fig. 
1.—Complete reproductive system of a fully formed specimen. 0, ovary; 
ov, oviduct; A, albumen gland; v, uterus; 1, testis; v, vagina; 
ve, vas deferens and penis; 8s, sperm-sac; D, duct of ditto; 5, 
egg-sac; ©, cloacal glands. 
2.—Vertical section of cloaca, showing peculiar music-note-like glands. 
3.—Cluster of ovarian lobules, as seen under compressorium. 
4.—Compound, leaf-shaped follicle of testis, much enlarged. 
5.—Sectional plan, of relations of heart, lungs, and viscera. 4, heart; 
Pg, pericardial gland; p, pericardium; ss, shell-sac; 1, lung; 
§ T, sub-thoracic visceral clamber; F, foot. 
6.—Diagram of circulation. 4H, heart; A, aorta; vi, visceral chamber ; 
LV, great lateral vein and branches; 1, lung; P, pericardial gland ; 
S, sinus, which plays the part of auricle. 
PLATE III. 
1.—Entire digestive apparatus of a fully-developed individual. 4, head; 
s, salivary gland; G, gullet; st, stomach; 1, liver; 1, intestine; 
R, rectum. 
2.—A lobule of the liver, highly magnified, showing gradual conversion of 
the duct into the fibrous septa. 
3.—Lobules of salivary gland, with circular contained endoplasts. 
4,.—Strata of muscular tissue from gullet, x 250, exhibiting intermingled 
elastic fibres. 
5.—Roughened or spinous membrane of tongue. 1, single spine seen 
laterally. 
6.—Semi-schematic, vertico-longitudinal section of head. 0, oral orifice ; 
T, tongue; P, pharynx; G, gullet. 
7.—Ganglionic endoplasts, much increased. 
8.—Whole nervous system, enormously enlarged. , first circle; 8, 
second; C, third; P P, great pedal nerves ; ph, pharyngeal ganglia ; 
Sg, supra-cesophageal, and 1g, infra-cesophageal, ganglia. 
9,—Diagrammatic view of the relations of tentacular muscles. st, supe- 
rior tentacle; 1t, inferior ditto; ot, organ of taste (?); B, basal 
muscle; P, posterior ditto; a, anterior ditto; s, half of second 
pair of nerves; F, half of first ditto. 
