Scientific Intelligence. — Botwhy. 20S 



by the author with an arrangement which might be derived solely 

 from the germination ; in some cases it is artificial, but for the 

 miost part natural. The comparison of the Leguminosse with the 

 families with which they are allied, occupies the third memoir, 

 l^heir relation with the Terebinthaceae and Rosaceae are fully 

 pointed out ; but although we have no wish to unite them with 

 either of these two families, it scarcely appears to us that any de- 

 finite characters are yet pointed out, which can be at all of service 

 to the student of the artificial method. We believe, however, 

 that this will be again taken up in a future memoir. The fourth 

 memoir is on the mutual relations of the Leguminosae, and their 

 subdivisions. The fifth memoir contains a review of the tribe 

 called Sophoreae, while the sixth is devoted to that of the Lo- 

 teae. These two last, to many, are the most interesting that 

 have yet appeared : each genus is passed under review : the 

 characters of the new or little known genera are developed ; and 

 if the old ones are divided, or the species changed to others, the 

 reasons are entered upon. We understand that, in the subse- 

 quent memoirs, other tribes will be treated in a similar manner. 



ARTS. 



4S. On the liahility of English Silks and Cottcnis to become 

 faded ; and on the superiority of the Silks of France, and the 

 Cottons of India in that respect. — The cause why English silks 

 or satins do not retain their colour or whiteness, so long as those 

 of French manufacture, cannot reasonably be attributed to the 

 change of climate, as, in that case, it should equally affect both. 

 Silks or satins of French manufacture will be found as fit for 

 use, after a period of twelve or fifteen months, as when first im- 

 ported ; while those manufactured in England, will have so 

 completely changed, as to be rendered useless for any article of 

 dress. The white will have assumed an unsightly yellow tinge, 

 and the coloured will be found to have faded considerably. It 

 is probable, that the fault originates, in a great measure, from 

 the method used in extracting the varnish or gum from the raw 

 silk : and, perhaps, also from some slight inattention in the pro- 

 cess of bleaching it afterwards. It can scarcely be thought 

 that so delicate an article as silk, must not suffer, more or less, 



