hensive
statement of this subject. List of literature.

PROTOZOA

CALKINS, G.N. The Protozoa. _Osler's Mod. Med._, Vol. I, 1907, p.
353. General notes on the Protozoa; classification; reproduction;
life-cycle of various forms. Regards Protozoa as subkingdom and the
four great divisions as phyla.

CALKINS, G.N. Protozooelogy. N.Y., 1909. Chapters on parasitism,
pathogenic Protozoa, etc.

CLARKE, J.J. Protozoa and Disease. London, 1903, Pt. I. Discusses
the various protozoa that cause disease, and refers frequently to
those that are transferred from host to host by insects.

CLARKE, J.J. Protozoa and Disease. London, 1908. Part II,
comprising sections on the causation of smallpox, syphilis and
cancer. Notes on parasitic Protozoa, tropical diseases, ticks,
piroplasmosis, etc.

DANIELS, C.W. Persistence of the Tropical Diseases of Man Due to
Protozoa. _Jour. Trop. Med. & Hyg._, 12, Aug. 2, 1909, pp. 232-234.
Same in _Lancet_, II, 1909, p. 460. Good summary of present
knowledge of the subject.

MINCHIN, E.A. Protozoa. In Albutt and Rolleston's _System of
Medicine_, II, 1907, pp. 9-122. A comprehensive chapter on
Protozoa. Many parasitic forms are figured and described.
Bibliography.

MINCHIN, E.A. The Sporozoa. In Lankester's _Treatise on Zooel._, Pt.
I, pp. 150-360, 1903. Best account of this group, list of Sporozoan
hosts. Bibliography.

BACTERIA

FLEXNER, SIMON. Relation of Bacteria and Sporozoa to Disease.
_Science_, N.S., Vol. 27, No. 682, pp. 133-136. On these pages
discusses relation of bacteria and Protozoa to human diseases.

JORDAN, EDWIN O. General Bacteriology. Philad., 1898. A good
general treatment of the subject.

LEVY, ERNST, AND KLEMPERER, FELIX. Elements of Clinical
Bacteriology for Physicians and Students (transl. by A.A. Eschner),
Philad., 1909. Morphology and biology of bacteria; infection;
immunity; specific diseases of bacterial origin, etc.

MUIR, ROBT., AND RITCHIE, JAS. Manual of Bacteriology. N.Y., 1903.
Contains chapter on the relation of bacteria to diseases and
discussion of several bacterial diseases.

STERNBERG, G.M. A Manual of Bacteriology. N.Y., 1893. Part III is
devoted to pathogenic bacteria.

INSECTS AND DISEASE

HERMS, W.B. Medical Entomology, Its Scope and Metho