thuy, who, in 1853, set forth the theory that yellow fever
was transmitted by mosquitoes.

DENGUE

ASHBURN, P.M., AND CRAIG, C.F. Experimental Investigations
Regarding the AEtiology of Dengue Fever. _Jour. Infec. Diseases_,
Vol. V, 1907, pp. 440-475. Conclude that the disease is spread only
by mosquitoes.

COLEMAN, THOMAS D. Dengue. _Osler's Mod. Med._, Vol. II, 1907, p.
489. AEtiology, pathology, etc.; possibility of _Culex fatigans_
disseminating the disease.

GRAHAM, H. "The Dengue"; a Study of Its Pathology and Mode of
Propagation. _Jour. of Trop. Med. & Hyg._, July 1, 1903, p. 209.
Experiments which seem to show that dengue is transmitted by _Culex
fatigans_.

LEICHTENSTERN, O. Dengue. In Nothnagel's _Encyclopedia of Practical
Med._, Amer. Ed., 1905, pp. 720-743. Consideration of the disease
and its transmission.

ROSS, E.H. The Prevention of Dengue Fever. _Amer. Trop. Med. &
Parasit._, Vol. II, No. 3, July 1, 1908, pp. 193-195. A successful
campaign against the mosquitoes in Port Said in 1906 stopped the
outbreaks of malaria and dengue.

Dengue and Sand-flies. _Jour. Trop. Med. & Hyg._, 12, 1909, pp.
172-173. A note on these pages refers to the work of Dr. R. Doerr,
who suspects that dengue may be carried by sand-flies,
_Phlobotomus_, as well as by mosquitoes.

FILARIAL DISEASES AND ELEPHANTIASIS

CHRISTOPHERS, S.R. What Is Really Known of the Cause of
Elephantiasis. _Ind. Med. Gaz._, Nov., 1907, p. 404. Questions
Manson's theory in regard to the disease being caused by filaria.

MANSON, PATRICK. Tropical Diseases. London, 1908, pp. 594-648. A
most comprehensive chapter on filariasis and elephantiasis.

PHALEN, J.M., AND NICHOLS, H.J. Filariasis and Elephantiasis in
Southern Luzon. _Phil. Jour. Sci._, Sept., 1908. _Culex
microannulatus_ regarded as the carrier of the filaria.

PROUT, W.T. On the Role of Filaria in the Production of Disease.
_Jour. Trop. Med. & Hyg._, Apr. 1, 1908, p. 109. Discussion of same
in same journal, June 1, 1908.

WHITE, DUNCAN. Filarial Periodicity and Its Association with
Eosinophilia. _Jour. Trop. Med. & Hyg._, 12, July 15, 1909, pp.
175-183. Among other things he discusses the relation of mosquitoes
to filarial diseases.

LEPROSY

BRINCKERHOFF, W.R. A Note upon the Pos