X 



30 



with water. This method was very satisfactory until the pit was 

 filled and the manure exposed above the top and sides. Each day, 

 where the borax treatment was given, 2| gallons of water containing 

 Ij oz. of borax was sprinkled on the daily output of manure from 

 one horse. If in a very wet condition, the manure should be dried 

 somewhat before treatment. Hellebore was tried as a substitute, 

 but is far more expensive than borax. Manure treated with borax 

 should not injure plants if not more than 15 tons are used to the acre. 

 Fly traps and poisoned baits were the means of capturing a number 

 of flies, including Stomoxys calcitrans (75 per cent.), Musca domestica, 

 Calliphora erythrocephala, Lucilia sericata, Phormia regina, Fannia 

 canicularis and other species. The effect of poison of varying strength 

 on flies is discussed ; 1 oz. to \ oz. of sodium arsenite in a gallon of 

 solution was found sufficiently toxic, but greater strengths killed a 

 larger percentage in a shorter time. 



Headlee (T. J.). Report of the Mosquito Work for 1916. — Reyt. 

 Dept. Entom. 1916, New Jersey Agric. Expt. Sta., New Brunswick, 

 N. J., 1917, pp. 521-557, 8 figs. [Received 2nd December 1919.] 



Particulars are given of the drainage operations executed in the 

 various counties. The mosquitos observed during the year included 

 Ochlerotatus (Aedes) cantator, 0. (A.) sollicitans and 0. (A.) sylvestris 

 and Cidex pipiens. 



Many substances have been tested as larvicides and details are 

 given of the results obtained ; these included metal salts, drugs 

 and more or less pure organic chemicals. While a number of compounds 

 destroy mosquito larvae, none was found to remain effective for more 

 than a limited period after the application was made. 



Headlee (T. J.). Report on Mosquito Work. — Bept. Dept. Entom. 

 1917, New Jersey Agric. Expt. Sta., New Brunswick, N.J., 1918, 

 pp. 485-520, 4 figs. [Received 2nd December 1919.] 



The work accomplished in salt-marsh drainage by all agencies 

 up to 1916-1917 and the effect of this work on the prevalence of the 

 salt-marsh mosquitos are illustrated by a map. By the beginning 

 of 1917, 95,000 acres of salt-marsh had been rendered reasonably 

 free from mosquito breeding-places, and no brood of any importance 

 had appeared during 1916 from that area. The various measures 

 undertaken in certain localities during the year are described. The 

 species occurring were the same as reported in the previous year 

 [see preceding paper]. 



Brunetti (E.). Diptera of the Simla District. — Records Indian 

 Museum, Calcutta, xiii, part 2, May 1917, pp. 59-101, 4 figs. 

 [Received 3rd December 1919.] 



Among the Diptera included in this extensive list collected in 

 various localities at the base of the Himalayas and near Simla are 

 the following blood-sucking species : — Simuliids, Simulium indicum, 

 Becker. S. senile, Brun., S. aureohirtum, Brun. ; Chironomids, 

 Ceratopogon (sub-gen. Prohelia) decipiens, Kiefi., and Culicoides 

 montivagus, Kieff. ; Culicids, Anopheles plumbeus, Hal. {barianensis. 



