a New Pivot'Castorfor Fitmitnre. 161 



In the new castor, the stalk which carries the sheaf is con* 

 verted into the socket, and the pivot is rivetted to the part 

 which is fixed to the furniture: from this arrangement, the 

 mouth of the socket is upwards, and if a portion of the middle 

 part of it be turned out wider than the pivot, it forms a reser- 

 voir in which oil enough for a year or two*s supply will find a 

 lodgment. 



A, The plate to be screwed to the furniture. 



B, The pivot rivetted into A. 



C, Section of the socket shewing 



D, The space turned out for holding oiL 



E, A screwed stud, having the half of its head filed off, so that by unscrew- 



ing it half a turn, the socket is allowed to drop off the pivot 



F, The sheave running between shears in the usual way. 



A leather washer may be inserted between A and C to keep out dust, but 

 it must not be thick enough to cause friction. 



Short Account of the Reverend John Flamstbed, the first 

 Astrmiomer^ Royal. By Francis Baily, Esq. Vice-Presidem 

 of the Astronomical Society, &c. &c. &c.* ; 



Flamsteed was bom at Denby, nearDerby, on August 19, 

 1646 ; and was educated at the free school at Derby, where his 

 father lived. In the summer of 1660, being then about four- 



• This account of the celebrated Flamsteed is extracted from his lift, 

 published from his original manuscripts by Mr Baily. Of this Impoitant 

 work 250 copies have been printed by order of the Lords CommissiunertjOf 

 the Admiralty, London, 1 836, for rfw/niu/M/n. .„ 



