94 Miscetlaneoiis. 



who wish to cultivate the graces and elegancies of English 

 composition, and a taste for poetry, criticism, and polite 

 literature ; or to improve the talent for conversation, and 

 the art of reading viith ease and propriety. Classical and 

 mathematical tutors attend on those pupils who require their 

 assistance, and proper teachers for music, dancing, and every 

 other accomplishment ; it being the object of the institution, 

 in its present enlarged establishment, not only to remedy all 

 defects of utterance, and initiate youth into the principles 

 and practice of an impre«si;«e and graceful elocution, but 

 also to give the last finishing to an accomplished education, 

 and prepare the pupil for the intercourses of polished society 

 and the higher departments of active life. Mr. Thelwall's 

 public lectures commenced on Monday, the 2Gth of Octo- 

 ber, and will be continued every Monday evening during the 

 winter season. 



M. Bettancourt, chief engineer to his majesty the king of 

 Spain, has communicated to the French Institute a new in- 

 vention which will render the construction of canals infi- 

 nitely more easy in future, in-so-far as it provides against 

 all useless expenditure of water. M. A. Pictet, the tribune, 

 who mentioned it in the report made to the legislative body 

 respecting the proposed law for imposing taxes for repairing 

 roads and bridges, &c., gives the following idea of the above 

 improvement :^" Each lock is furnished with an adjoining 

 reservoir,communicatingwith itatbottom: the lock is destined 

 to raise and lower the vessels as usual, but the vertical move- 

 ment of the liquid which floats them is produced by the sim- 

 ple immersion or emersion of a box in the contiguous reser- 

 ^ voir ; the volume of this box is equal to that of the water to 

 be displaced, and it is so happily and ingeniously balanced, 

 that one man is sufficient for raisinjx or lov/erino- the largest 

 vessel. Thus, in future, the more or less considerable sup- 

 ply of water, vvUich formed one of the chief difficulties in 

 the construction of canals, will be reduced to the quantity 

 necessary for supplying, the waste by filtration and evapora- 

 tion." 



The 



