French National InjUtut'f. 4:,) 



femblancc. C. Cets and Vcntcnat have (hewn that this tree 

 belongs to a fpecies defcribed by C. Jufiieu and Lamarck. 

 We are indebted to C. Mechaut, aflbciate of the Inititute, 

 for this new acquiiition, it i 11 more important perhaps than 

 that of the falfe acacia, which is at prefent cultivated with 

 fo much advantage. 



The difficulty of collecting the various productions of dif- 

 ferent climates, has been juftly coniidered as one of the grcatett 

 obftacles to the ftudy and progrefs of natural hi (tor)-. This 

 difficulty no longer exilis in regard to the plants growing 

 in the territories of Tunis and Algiers. The public is now 

 in pofl'eiiion of a Complete Flora of Mount Atlas, fo long 

 wifhed for by botanifts; and we are indebted for that obliga- 

 tion to C. Desfontaines. 



C. Broullbnct, whom the love of fcience conducted to the 

 fame part of Africa, has given an account of the particular 

 proceHes employed at Fez and Tetuan, for preparing thofc 

 goat flcins of which morocco leather of different colours is 

 manufactured. 



C. Teffier has (hewn how beneficial it would be to en- 

 courage, in the maritime provinces of France, the manufac- 

 turing of pitch-rope paper, fuch as that ufed for fheathing 

 oi (hips, by employing oakum procured from old ropes, &c. 



The fame author has obferved a fingular fact, the caufc 

 of which is not yet known. He obferved, in feveral places, 

 milk newly drawn from the cow, and of a beautiful white 

 colour, to become blue in the courfe of two or three days, 

 and remain fo even after it had been boiled. We are affured 

 that this phenomenon does not depend either en the age or 

 health of the cows, on the dairies, the vcffels in which the 

 milk is preferved, nor on any want of care or clcanlincfs. 

 The whole produce of the milk, though blue, is of a good 

 quality, and may be ate without any inconvenience. It is 

 hoi improbable that this colour may be owing to fome plants 

 of the nature of woad or indigo, on which cows fome times 

 iced in iuuimcr. But this is only conjecture j and C. 1 efliei 



prop. 



