128 



NATURE 



{Dec. 9, i! 



be too frequently repeated that that is due, not to a able persistence in the midst of obstacles caused by many 

 happy hit or to guess-work, but to an unceasing and skil- selfish interests. Times are greatly changed since M. 

 fully conducted struggle which was kept up with indomit- Dumas " protested, in discreet but unmistakable language, 



-Map showing the spread of Phylloxera 



e from iS&s 



against the indifference of a French Alinister of Agriculture ' taken by the railway companies and by various private 

 who tried to beat down a grant of 10,000 francs necessary gentlemen. M. Tirard, the present Minister of Agricul- 

 for continuing the scientific investigation. On the same 



occasion he drew attention to the praiseworthy initiation 



: des Sciences, February 23, 1874. 



