Geographer/Respectfully Dedicated/by his most obedient servant/W. & 

 T. M. Bardin /Manufactured and Sold Wholesale and Retail by W. & T. M. 

 Bardin/16 Salisbury Square/Fleet Street, London. 



The celestial globe, also with a Sheraton mahogany tripod 

 stand, has a diameter of 23 in. and is inscribed — 



To the Rev./Nevil Maskelyne, D. D. F. R. S. /Astronomer Royal/This 

 New British Celestial Globe/containing the positions of nearly 6,000 stars, 

 clusters, nebulae. Planetary Nebulae/& correctly computed & laid down 

 for the year 1800 from the latest observations and discoveries by Dr. Maske- 

 lyne, Dr. Herschel, the Rev. Mr. Wollaston, etc., etc. /Is respectfully dedicated 

 by his most obedient hmbl Servants W. & T. M. Bardin, Manufactured and 

 sold Wholesale & Retail by W. & T. M. Bardin/16 Salisbury Square/Fleet 

 Street, London. 



Gifts of Mrs. Eliza R. Lyon of Williamsport, Pa., in 1893. 



USNM 53253, 53254. Figures 76, 77. 



Orrery^ mounted on three legs 31 in. high, round top 22^ in. in 

 diameter. The planets shown are Mercury, Venus, Mars, Earth, 

 Jupiter, and Saturn. The base is not original. Maker not known; 

 English, 18th century. 



Gift of Miss Frances Priestley of Northumberland, Pa., in 1958. 

 USNM 315353. Figures 76, 77. 



RiTTENHOusE, Benjamin (1740-c.l 820). 



Surveying Compass, about 1796, of brass, 13/2 in. long over-all and 

 6/2 in. diameter. Supported on a tripod by means of a ball-and- 

 socket joint and screw-tightening device. The name "A.Ellicott" 

 is inscribed on one arm outside the bezel of the dial, and the name 

 "B. Rittenhouse" is inscribed on the other arm. The number "10" 

 is marked on the reverse of this instrument, which is listed in the 

 Journal of Andrew EUicott as Item 9: "A Surveying Compass made 

 by Mr. Benjamin Rittenhouse upon the newest and most ap- 

 proved plans." 



Gift of Henry B. Douglass of Newton, N.J., in 1934. USNM 

 310815. Figure 78. 



Rittenhouse, David (1732-1796), Philadelphia, Pa. 

 Surveying Compass, brass, over-all length 14 in., diameter 6/2 in., 

 silvered dial marked with eight-pointed star indicating the cardinal 

 and intermediate points, glazed. Inscribed "Rittenhouse, Phila- 

 delphia." Fitted with a ball-and-socket joint for mounting on a 

 tripod, and complete with wooden field case. 



Stated to have been used by General Washington for laying out 



142 



