380 Loan Collection at South Kensington . [July, 
Astronomy. 
Objects illustrating the History of the Telescope and Astronomical 
Observation . 
Incomplete telescope with broken lens of Galileo. 
Compass of Galileo. 
Magnet of Galileo. 
Telescope of Galileo. 
ObjeCt-glass (broken) of Galileo. 
Telescope of Torricelli. 
Tube of Torricelli. 
Telescope of Diviani. 
Telescope of Mariani. 
Telescope of Campani. 
Telescope by Amici. 
Lens by Benedetto Bryhens. 
“ Primo mobile ” of Ignazio Dante. 
Quadrant of Cosimo I. 
Quadrant of Giusti. 
Compass of Antonio Blaichini. 
Graphometer of Botti. 
Registering thermometer of Fontani. 
Natural magnet of the Accademia del Cimento. 
Telescope, by Chr. Huyghens. The objective ground and 
polished by him, and bearing his signature. 
Terrestrial refra( 5 tor, made by Van Deyl, at Amsterdam, 
in the year 1781. 
The Herschel 7-foot telescope. The original instrument 
constructed by Sir W. Herschel. — The tube is 7 inches in 
diameter and 7 feet long. Both mirrors were finished by 
Sir W. Herschel himself ; they are sound and whole, 
but are much tarnished, and the large mirror was damaged 
in a fire some years since. The framework of the stand is 
entire, but the moving screws, cords, &c., are useless in their 
present condition. 
A 10-ft. Newtonian reflecting telescope, made by Sir Wm. 
Herschel in 1812, with 8^-inch large mirror, small plane 
reflecting mirror, and several eye-pieces of various powers. 
Objectives and eye-pieces of the 17th and 18th centuries, 
the greater part of which were ground and polished by 
Christian and Constantine Huyghens. 
Apparatus used by Baily in repeating the Cavendish ex- 
periment. 
