348 



CATAT.OGUE. 



-PRACTICAL ASTRONOMY. 



Williamson's claim to the invention of equa- 

 ted elocks. Ph. tr. 1719. XXX. 1080. 



Made one in 1693 or 1694 ; another with an elliptic 

 roller raising the pendulum, which went 400 days : this is 

 still in the palace at Hampton Court. Made one by cora- 

 jiarison of the sun's motion with another clock ; this of 

 course included a general equation for temperature. 



Lebon's solar clock. A. P. 1722. H. IIQ. 



Mach. A. Ilf. 21. A. P. 1726. H. 70. 



Mach. A. IV. 45. 

 Meynier's solar clock. A. P. 1723. H. 122. 



Mach. A. IV. 59. 

 Thiout's solar clock. A. P. 1724. H. 93. 



Mach. A. IV. 67, 69, 173. 

 Dufay's machine for showing true time. A. 



P. 1725.67. 

 Kriegseisen's equation clock. A. P. 1726. H. 



69. Mach. A. IV. 155. A. P. 1732. H. 117. 

 St. Cyr's solar clock. Mach. A. IV. 149. 

 Duchesne's equation clock. Mach. A. IV. 



153. 

 Leroy's equation applied to a striking part. 



Mach. A. V. 67, 71,73. 

 Duterew's equation watch. A. P. 1742. H. 



163. Mach. A. VII. 153. 

 Berthoud's equa tion clock. A. P. 1752. H. 



147. 1754. H. 140. Mach. A. VII. 425, 



473. 



Going 13 months. 

 Biesta's equation clock. A. P. 1757. H. 



179. 

 Biesta's equation by a moveable dial plate. 



A. P. 1770. H. 115. 

 Ferguson's astronomical and equation clock. 



Ferg. inech. ex. 11. 

 Schulze on an equation clock. A. Berl. 1782. 



322. 



Observations of Time, in general. 



Bernoulli on finding the time at sea. A. P. 



Prix. VI. i. 

 Delambre oa finding the time from cor- 



responding distances. Zach. Mon. corr. IV. 



93. 



Dialling, or Gnomonics. 



Account of dials in the garden at Whitehall. 

 4. Lond. 1624. 



By Guntcr. 



Hooke's instrument for making dials. Birch.. 



II. 155. 

 Piciird on dialling. A. P. VII. i. 183. 

 Lahire on dialling. A. P. X. 444. 

 Parent's instrnment for shewing tbt true 



shadow. A. P. 170). H. II6. 

 Clapies on the angles of dials. A. P. 1707., 



569. 

 Delisle's gnomon for the sun's transit. A, I*". 



1719.54. 

 Gnomonic instruments. Leup. Th. M. G. 



t. 10, 11. 

 Mean's compound dial. A. P. 1731. H. 92. 

 Gensanne's transit instrument and dial. A. P. 



1736. H. 120. Mach. A. Vil. 55. 

 Krafft on dialling. C. Petr. XIII. 'Zo5. 

 Leraonnier's obelise for shewing the time of 



noon. A. P. 1743. 36l. H. 142. 1762.. 



263. 

 Emerson's cj'clomathesis. IX. 

 Wenz's dial. Ace. Helv. V[. 167. 

 La Condamine's gnomonical cane. A. P. 



1770. H. 114. 

 Bertier's globes serving for dials. A. P. 



1770. H. 117. 

 Ferguson's mechanical exercises. 95. 

 Lalande on a vertical linear gnomon, A. P. 



1757.483. 

 Ferguson on dials. Ph. tr. 1767. 389, 

 E. M. PI. V. Marine. I. 

 E. M. PI. VIII. Amusemens degnomonique. 

 Carayon's sun dial with wheelwork. Roz. 



XXIV. 312. 

 Mignon on Carayon's dial. Roz. XXV. 377. 

 Castillon on gnomonics. A. Berl. 1784. 259. 



