152 EXPERIMENT STATION EECOIID. 



wore iiiiulo with larva' in ])(>ts and in open j:;romHl. ami tliongh .some of tlio larva' in 

 the pots were attacked by tlie fungus and died, the majority were exempt and very 

 few died in tlie open ground. The conclusion was that the disease is epidemic, in its 

 virnlencc. as siniihir exix'rinicnts in France had proved successful. 



Note on Phyllium piilchrifolium, Sappey {Compt. Bend., 118 {1S94), No. 25, pp. 

 1393-130'i). — Anatomical notes on this walking leaf. 



The green substance of Phyllium, H. Becquiki{ei, and C. Hkongniakt {Compt. 

 Rend., 118 {ISM), No. 24, pp. -?^99-7505).— Investigations as to the nature of the color- 

 ing matter of the walking leaves {Phasmidm), PhylUiim piilchrifolium and J', cruri- 

 foliiim being made use of. It was found to dissolve in alcohol, and the solution was 

 examined through the spectroscope. The bands were compared with those from a 

 solution of the coml)ined chlorophyll of various plants upon which the insects are 

 know^u to feed, and found to almost coincide. The coloring consequently is stated 

 to ])e chlorophyll, and its presence due to the leaves used as food. 



Researches on the red coloring matter of Pyrrhocoris apterus, C. Phisaltx 

 {Compt. L'cnd., 118 {1894), No. 33, pp. 1282, 1283).— HtniGiiU) be a substance closely 

 related to carotin and without physiological action. 



A scale insect on plums, S. A. Bkach {Gord. and Forest, 7 {1894), p. 284, fin. 1). — 

 Note on Lecanium cerasifex attacking and destroying plums and a few other fruit 

 trees in New York, with a photographic plate of an infested branch. 



The San Jose scale in New Jersey, .1. B. Smith {Jint. Xews, 5 {1894), No. 6, pp. 

 182-184). — Note on the pest having been in New Jersey for several years undiscov- 

 ered. 



Further observations on the tea bugs (Helopeltis) of India, 0. O. Wateiihouse 

 ( Trans. Ent. Soc. London, 1892, j)t. 1, pp. 31, 32). — Description and biologic notes, with 

 accounts of continued damage, s^jring pruning and careful cultivation seeming to 

 have no effect. 



Tubercles upon potatoes, F. Heins {Ann. Soc. Ent. France, 1894, No. l,pp. 29-32). — 

 Lasiiis nii/er perforates potatoes, causing lumps, but the tubers do not rot, probably 

 on account of the formic acid secreted liy the insect. 



Methods for exterminating locusts in the Caucasus {Kew Alisc. linl. 91, pp. 

 215, 216). — Abstract of recommendations by the Kussian Ministry of Agriculture. 

 Burning, driving into trenches, and crushing with wattled hurdles and rollers are 

 advised. 



Poisons and the destruction of insects, A. LAPJiALi'.TRiEK {Jour. At/r. Prat., 58 

 {1894), No. 26, pp. 927, 928). — Brief notes on experiments on caterpillars with various 

 poisonous chemicals and the unsatisfactory results. 



Preservation of books in the tropics {Kew Misc. Bnl. 91, pp. 217, 218). — In 

 Calcutta liljraries the books are protected against white ants by placing the shelves 

 on stone insulators, and against other insects by disinfecting with na])hthai, lightly 

 brushing with kerosene or an alcoliolic solution of corrosive suljlimate, and placing 

 naphthalene in the cases. 



FOODS— ANIMAL PRODUCTION. 



Does chemical analysis afford a reliable indication of the 

 feeding quality of a pasture? A. P. Aitken {Trans. Highland and 

 Agl. Soc. iScotland, l<s!)l, pp. 410-425). — To answer this question very 

 i^oniplete analyses were made of the grass from 17 i)astures and of 

 the soils and subsoils of these pastures. In the fodder analyses the 

 water, ash, liber, total protein, albuminoids, amids, and ether extract 

 were <letermined, together with the total solids, carbohydrates, protein, 



