29 



A table shows the data collected by district inspectors as to malarial 

 conditions, and contrasts the present circumstances with those in the 

 year 1913. The geographical distribution of malaria in Spain^ the 

 intensity and spread of the disease with its summer and autumnal 

 epidemics, and the microscopic examination of blood smears collected 

 from even the smallest and most distant villages, have been worked 

 out thoroughly and indicate in detail the present malarial conditions 

 in each of the 14 agricultural districts into which Spain has been 

 divided. It is a significant fact that, while the number of municipal 

 malarial centres has increased, the number of cases of disease and death 

 have diminished in spite of the lack of quinine since the outbreak of 

 the War and the scarcity of food. This is considered to be entirely due 

 to the constant propaganda on the subject of hygiene disseminated by 

 the sanitary authorities and the district inspectors, and it is hoped in 

 time to clear, by the cultivation of medicinal plants and the re- 

 aforestation of agricultural holdings in marshy and malarial districts, 

 at least a part of the 750,000 acres that constitute the principal existing 

 foci of malaria. 



PiETRE (M.). De la Oncocercosis bovina en la Argentina. [Bovine 

 Onchocercosis in Argentina.] — Bol. Minisi. Agric, Buenos Aires, 

 xxi, no. 1, January-June 1917, pp. 35-41, 2 plates. [Received 

 1st December 1917.] 



In 1913 the author discovered in France a new disease of cattle due 

 to a Nematode, which was provisionally named Onchocerca bovis, and 

 he now records the occurrence of this parasite in Argentina. 



Joan (T.). Nota sobre un Estado larvario del Gastrophilus nasalis. 

 [A Note on a larval Stage of Gastrophilus nasalis.] — Bol. Minist. 

 Agric, Buenos Aires, xxi, no. 1, January-June 1917, pp. 42^5, 

 3 figs. [Received 1st December 1917.] 



The penultimate stage of this Oestrid larva is here described. 



Jaeschke (V. J.). Los Banos arsenicales. [Arsenical Dips.] — Bol. 

 Minist. Agric, Buenos Aires, xxi, no. 1, January- June 1917, 

 pp. 46-69. [Received 1st December 1917.] 



This paper is a concise review of modern knowledge of arsenical dips 

 and contains no new facts. 



Gthteras (J.). Recientes Observaciones sobre la Flebre amarilla. 



[Recent Observations on Yellow Fever] — Repertorio de Med. y 

 Cirurg., Bogota, viii, no. 6, March 1917, pp. 265-279. [Reprint 

 from Bol. Asoc. Med. de Puerto Rico.] 



The author dissents from the conclusions of Marchoux as to the 

 existence of a specially mild form of yellow fever that never merges or 

 develops into the more severe one. The mild and severe types are 

 always found together and are due to the same infection. In many 

 so-called foci of yellow fever the disease present is not yellow fever, but 

 another disease, such as a pernicious form of malaria. Even where no 



