192 



The assistant director of agriculture of Burmah is reported to have 

 used naphthaline instead of bisulphide in the following way, but I should 

 not expect anything like as good results from the naphthaline as from 

 the bisulphide : 



A hollow bamboo cylinder 1^ inches in diameter with a stick fitted 

 into the cavity is pushed down to the bottom of the bin, the stick is 

 then withdrawn and a few teapoonfuls of naphthalin powder is poured 

 into the bamboo, which is then drawn out leaving the naphthalin at 

 the bottom of the bin. If the bins are very large this should be done 

 once to every 10 feet square and the application should be repeated 

 every fifteen or twenty days. 



INSECTICIDE MACHINERY. 



A profitable hour might be devoted to the subject of insecticide ma- 

 chinery, but I must content myself with a few words. At a trial of such 

 machinery at the Mareil-Marly vineyards during the late Paris Expo- 

 sition I had an excellent opportunity of witnessing the latest advances 

 made in France in this direction, and it was extremely gratifying to 

 ijote that, with whatever modification of the power employed (and many 

 of the machines were very ingenious), all other forms of spraying tip had 

 been abandoned for vineyard purposes in favor of modifications of the 

 Riley or Cyclone nozzle. The superiority for most practical purposes of 

 the portable knapsack pumps of Y. Yermorel, of Yillefranche (Rhone), 

 France, was sufficiently evident. Mr. Yermorel has indentified himself 

 with the regeneration and improvement of French grape culture in many 

 directions, and is, withal, an enthusiastic student of insect life. I spent 

 a very profitable day with him last year, both at the factory and at his 

 home, where he has established a virtual experiment station in the 

 midst of a fine vineyard on American roots, and with every facility for 

 various fields of investigations, none of which are deemed more impor- 

 tant than the work in entomology, for he fully realizes how much there 

 is yet to learn of some of the commonest insects destructive to the vine 

 even in an old country like France. But in no direction has he accom- 

 plished as much good as in his work with insecticide and fungicide ma- 

 chinery. His sprayer with independent pump, his diaphragm pump — 

 L'Eclair— and his reservoir with suction and force pump are all admira- 

 bly adapted for the purpose they were invented for and may be obtained 

 in France at a cost from $5 to $7 which is tripled before reaching this 

 country, thanks to our present tariff system. 



The last number of the Journal of Mycology, the serial publication 

 of the Division of Yegetable Pathology of the Department of Agri- 

 culture, gives full description, with figures, of a knapsack spraying 

 apparatus, for which the special merit claimed is cheapness, and which 

 is named the Galloway Sprayer. 



The combination of a suction and a force pump with knapsack reser- 

 voir has been frequently made in France, as illustrated by the appara- 



