c, the appearance presented by the cellated divisions of some of the

stems.

d, the appearance of the cellated stems when seen with an imperfect focus.

FIG. 10. One of the hairs removed from the centre of a favous crust; magnified 155 times.

FIG. 11. TRICHOSIS FURFURACEA. A diseased hair from a patch of Common Ringworm; magnified 155 times.

The external layer is removed at a; at b it still remains.

FIG. 12. A group of nucleated granules from the outer surface of the fibrous portion of the preceding hair. They are magnified 310 times.

PLATE 16.

EXANTHEMATOUS AND PAPULAR SYPHILITIC ERUPTION.

A A. Roseola versicolor vel vulgaris. (See p. 359.)

B. Roseola punctata. (See p. 360.)

C. Roseola orbicularis. (See p. 359.)

D. Roseola annulata. (See p. 359.)

E. A blotch of roseola orbicularis, from which the epiderma has peeled off and forms a white frill around its circumference. The colour of the blotch is intended to show the true " copper-colour."

F. Roseolous blotches in process of fading, and passing away as brownish stains. (See p. 360.)

G G. Lichen syphiliticus corymbosus. (See p. 361.)

H. Lichen syphiliticus disseminatus. (See p. 361.)

I. Lichen syphiliticus confertus. (See p. 361.)

K. Lichen syphiliticus annulatus. (See p. 361.)

The natural colour of the eruptions has been adhered to as nearly as possible in this plate; and in several places, the colour of the stains left by the declining and fading eruption is shown.

PLATE 17.

TUBERCULAR SYPHILITIC ERUPTIONS.

L. Tubercula syphilitica corymbosa. (See p. 364.)

M M. Blotches of tubercula corymbosa assuming a circular and annulate form. N N. Smaller blotches found intermingled with the preceding forms in syphiloderma tuberculatum corymbosum. These latter may be distinguished as "cupped" tubercles. All the three forms are frequently met with in the same person.

O. A small patch of tubercula circumscripta. (See p. 366.)

P. Larger patch of tubercula circumscripta. The tubercles are covered with scales formed by the exfoliation of the cuticle.

QQ. Tubercula disseminata.

R. Tubercula disseminata, in process of exfoliation; each tubercle being surrounded at its base by a frill of cuticle. (See p. 368.)

S S. Tubercula annulata. Between the two larger rings are seen incipient rings, having the characters of "cupped" tubercles. (See p. 369.)

T. An annulate tubercle from the penis.

V V. Rings of annulate tubercle.

W. Cupped tubercles; the common form of the separate eruptions in infantile syphilis.

PLATE 18.

A. Patch of rupia simplex from the knee. (See p. 372.)

B. Rupia prominens; below the lower eyelid is seen one of the pustules by which rupia prominens ordinarily commences. (See p. 373.)

C. Erythema palmare syphiliticum. (See p. 377.)

D. Erythema palmare annulatum centrifugum. (See p. 377.)
E. Aphthous exfoliation and syphilitic tubercles of the tongue.

PLATE 19.

A. Ulcera syphilitica; the figure represents the hand of the patient, and the state of distortion occasioned by syphilis. (See p. 379.)

B. Hereditary syphiloderma of the nose.

C. Erythematous syphiloderma of the nose.

D. Syphiloderma lupoides, or lupus non exedens. (See p. 385.)

E. Syphiloderma lupoides. (See p. 385.)