38 SILK GROWER'S GUIDE. 



quintals of the common white mulberry. By the most 

 perfect rules of pruning, he makes this mulberry assume 

 the form of a quenouille or vast distaff, fifteen feet high, 

 the form to be always preserved. 



This mulberry braves the most rigorous winters of 

 France. Of this important fact we have the indisput- 

 able testimony of M. Poiteau and others ; even of the 

 uncommonly severe winter of 1829-30 : it has there 

 been acclimated, even to the extreme north, as" far as 

 Havre; and where it has been cultivated by M. Eyries, 

 from its first introduction to that country. 



Dr. Deslongchamps, in his experiments at Paris, had 

 found, that the cocoons produced by the silk-worms 

 which were fed exclusively on the Chinese mulberry 

 were even rather heavier than other cocoons. And in 

 the report on this mulberry to the academy of Dijon, in 

 August, 1834, by M. Tilloy, it appeared by accurate 

 experiments, that the cocoons produced from this mul- 

 berry being rather heavier, the fibre was consequently 

 stronger than that of other cocoons; as it was remarked 

 in winding, that of the whole of these, three hundred 

 and eighty-four cocoons in number, not a thread was 

 broken, which was not the case with the other cocoons. 



Near Montgeron in the north of France, the French 

 government have established an experimental silk farm, 

 under the direction of M. Camille Beauvais ; and the ex- 

 traordinary experiments which are there in progress 

 were published in 1835. Already has he succeeded in 

 producing thirteen pounds of silk from the same num- 

 ber of silk-worms which in France usually produced but 

 five pounds, and in Italy seven and a half pounds, and 

 in India twenty pounds; and even in that climate he ex- 

 pects soon to be able to produce an equal number of 

 pounds. And Gen. Talmadge, who has lately visited 

 the establishment, has stated in a letter dated April, 

 1836, at Paris, that when the leaves of the different 

 kinds of mulberry are mixed together, the worms will 

 select and gather on the Chinese mulberry. And Mad- 



