408 Scientific Intelligence. — Ai'ts, 



they must be forced to use it solely, leaving the right system in 

 a state of inactivity. The reverse of this is generally what takes 

 place. Nurses, in fact, usually carry children on the right arm. 

 In this position the child has the whole left side pressed against 

 the breast of the nurse, which cannot but increase the disposi- 

 tion acquired at birth. — Bulletiii Universel, April 1828. 



ARTS. 



31. Artificial Ultramarine. — M. Gay I.ussac presented, at a 

 late meeting of the French Academy of Sciences, a specimen of 

 artificial ultramarine, manufactured by M. Guimet. He ob- 

 served, that this ultramarine, which is of a quality superior to 

 that of the finest specimens hitherto sold, has been employed by 

 several painters, who have expressed their satisfaction with its 

 numerous excellent qualities. He mentioned also, that M. Gui- 

 met's ultramarine may be delivered to the consumers at the rate 

 of 25 francs per ounce, or at two-thirds of the price of natural 

 ultramarine of good quality. As soon as M. Guimet's discovery 

 was announced by the public journals, a foreign chemist, M. 

 Gmelin of Tubingen, gave out that he also possessed a process 

 for the manufacture of artificial ultramarine. He even published 

 his recipe. M. Guimet, who keeps his a secret, is doubtful whe- 

 ther ultramarine can be obtained by M. Gmelin''s process at the 

 price at which he himself delivers it to commerce, 



STATISTICS. 



32. Culture of Turnips. — Until the beginning of the eighteenth 

 century, this valuable root was cultivated among us only in gar- 

 dens or other small spots for culinary purposes ; but Lord 

 Townshend, attending King George the First in one of his ex- 

 cursions to Germany, in the quality of Secretary of State, ob- 

 served the turnips cultivated in open and extensive fields, as 

 fodder for cattle, and spreading fertility over lands naturally 

 barren ; and, on his return to England, he brought over with 

 him some of the seed, and strongly recommended the practice 

 which he had witnessed to the adoption of his own tenants, who 

 occupied a soil similar to that of Hanover. The experiment 

 succeeded ; the cultivation of field turnips gradually spread 

 over the whole county of Norfolk ; and, in the course of time. 



