74 Geometrical Hecreation. — Partridges. 



The axis around which it turns, may be fixed without injury 

 upon a glass: the hours are then indicated upon that glass. 



*** A scientific friend who has been lately in Paris, and has 

 seen the above instrument, and its singular action, was completely 

 at a loss how to account for it. Neither (electricity nor magne- 

 tism, it is asserted, has any thing to do with its movements; so 

 that its action must be entirely mechanical. 



GEOMETRICAf, RECREATION. 



M. Allizeau, an artist of Paris, has invented a new sort of toy, 

 to which he gives the name of Metamorphoses. It consists of five 

 pieces, which may be so arranged as to compose all sorts of poly- 

 gons; to resolve twenty-eight problems of geometry; and even 

 to demonstrate the square of the hypothenuse. With the assist- 

 ance of these pieces, a person may also trace plans of fortifica- 

 tion ; erect monuments, rustic villas, bridges, tombs, &c. The 

 figures obtained are all regular and symmetrical ; thev result 

 from a perfect square, susceptible itself of being divided into 

 thirty-six other small squares. This invention may prove a 

 source of very agreeable recreation, and cannot fail to be of great 

 service to young people designed for the mechanical arts. It 

 exhibits the first principles of architecture and geometry, a know- 

 ledge of which is indispensable in the practice of the arts. 



This collection of geometrical recreations is composed, 1st, 

 of five pieces, in wood, in ivory, or in mother of pearl, for the 

 planes : — 2d, of a small box inclosing the same number of pieces 

 for the elevations ; — 3d, of a number of plates on which are de- 

 signed fifty-six regular figures obtained from the composition of 

 the square; — 4th, of a second number of geometrical figures, &c. 

 — 5th, of a third number containing thirty-seven subjects of 

 architecture in perspective elevation. — The price is fourteen 

 francs [\\s. 8d.) 



PARTRIDGES. 



At the latter end of last month, as a cat belonging to Mr. All- 

 work, of Goudhurst, was prowling through the meadows, it was 

 observed to kill a partridge, and on examining the spot a nest 

 was found, containing eighteen eggs, which were taken up and 

 that evening deposited in an oven that had been recently used. On 

 the following morning, when the oven was ojiened, the whole of 

 the eggs were found hatched, and the young ones running about, 

 but in catching them three were unfortunately killed; the re- 

 maining fifteen were put into the nest, and placed in the meadow 

 from which it had been taken on the preceding evening. In a short 

 time the old cock partridge was attracted to the spot, and in a 

 few minutes it departed with the whole brood in the presence of 

 several persons. Since that time they have been frequently seen 

 by the gamekeeper of T. Wallis, esq. 



