CONTENTS. 



PAGE 



Observing Station, and Operations for Longitude 391 



Latitude and Longitude of Hermitage Station 391 



Double altitudes of the Sun observed for local time 392 



Rocket Signals 393 



Intercomparisons of Chronometers 393 



Errors and Rates of Chronometers 394 



Observations of the Transit of Venus, 1874, December 8 395 



Equations resulting therefrom 399 



Plate XV. Diagrams illustrating the Observations of the Transit of Venus by 



Lieutenant Hoggan to face 395 



