NOTES AND ABSTKACTS. 



661 



mixture with Paris green or slaked lime and Paris green is recommended 

 as a spray. A small ant was very troublesome as a fruit pest. Pouring 

 carbon bi-sulphide into the nest, taking care not to bring a light near the 

 vapour, was recommended as a remedy. — F. J. C. 



Injury of Leaves by Wind, Experimental Researches on. By 



J. Hansen (Flora, vol. xcii. 1903, pp. 32-50, t. i.). — In this preliminary 

 research the author produced, by a fan, a steady wind, between 1 and 2 of 

 Beaufort's scale (i.e. 8-13 miles per hour), to pass through a case in which 

 was a pot with a growing plant. 



The effect was the drying up of the margins, affecting masses of 

 tissue near the finest terminations ; and the spots soon turned brown. 

 As withering by ordinary desiccation has not the same effect, it is obvious 

 that some other physical effect than excessive evaporation must induce 

 this. The author suggests that the action of the wind first deprives the 

 finer bundles of their contained water, and then renders them impervious, 

 thus inducing necrosis of the area they supply. — M. H. 



Insectarium Notes. By W. W. Froggatt, F.L.S., Government 

 Entomologist (Agr. Gaz. N.S.W. pp. 1019-1027; October 1903).— The 

 notes are gathered from observations made upon insects kept in the 

 breeding-cages of the insectarium erected in the grounds of the Hawkes- 

 bury College. The insectarium consists of a glass-house with benches 

 running round the sides, containing a number of pot-plants and shrubs on 

 which to feed plant-devouring pests received from all parts of the State. 

 This opens into a well-lighted room containing the breeding-cages. The 

 walls are covered with pictures of all the injurious and useful insects that 

 have been figured in the ' Agricultural Gazette,' and the room is fitted 

 with show-cases containing a series of typical insects of Australia, il- 

 lustrating the different families and orders, and the correct classification 

 and naming of the specimens displayed. The sorts noted are the Con- 

 volvulus Hawk Moth (Protoparce convolvuli), the Tibbed Case Moth 

 (Thyridopteryx Herrichii), the Cotton-boll Moth (Earias fabia), the 

 Painted Acacia Moth (Tela anartoides), the Forest Bag- web Moth (Ocinara 

 Leiuince), the Soy Bean Moth (Gelechia simpUcella), the Underground 

 Maize Beetle (Pentadon australis), the Orange Butterfly Parasite 

 (Pteromulus pupa/rium), the Leaf-mining Fly (Phytomyza affinis), the 

 Snow Fly (Aleurodes vaporium), and the common Black Thrips (Helio- 

 thrips Lcemoridalis). The article is illustrated with numerous engrav- 

 ings.— H. G. C. 



Insecticide {Rev. Hort. July 1, 1903, p. 303). — M. Georges Bellair, 

 in a report on the Horticultural Congress at Paris, states that Professor 

 Gerard strongly recommends the following (Laurent's formula) : 



Bich tobacco juice .... 1 decilitre. 



Soda crystals 20 grammes. 



Black soap 100 grammes. 



Wood spirit 1 decilitre. 



Water 10 litres. 



a t. d. 



