476 TRANSIT OF VENUS, 1874. KERGUELEN ISLAND. THUMB PEAK. 



Time was taken from the solar chronometer Fletcher 950, of which the 

 dial was limited to 12 hours. The observations were recorded, from Lieut. 

 Groodridge's words, by Mr. Baton. Before leaving the Supply on December 7, 

 Fletcher 950 was compared with the solar chronometer Cribb 725 (the ship's 

 chronometer) ; and on returning to the ship it was again compared. The 

 object of these comparisons was merely to obtain assurance that Fletcher 950 

 had not received injury in landing from the ship and returning to it. They 

 are as follows : 



hras h m a hms 



Deo. 7 (civil) Fletcher g5o, 1 1. i. 20-0= Cribb 720, 5. 48. i3'5 : Excess of Fletcher g5o, 5. i3. I r"> 



n. 4.00-0 5. 01.38'") 5. 3. ii'5 



8. 3g. 5o 3.26.35 5. i3. u> 



8.44.40 3.3i.2o 5. i3. i5 



Dec. 9, Fletcher 960, 7. 53. 34 2. 40. 10 5. i3. 24 



7-35-29 2.42. 5 5.13.24 



2. 52. 26 9. 3g. o - 5 5. i3. 25'5 



2.04.31 9-41- 5-5 5. i3. 25'5 

 The result appears to be satisfactory. 



LIEUTENANT GTOODRIDGE'S REPORT ON THE OBSERVATION, OF THE TRANSIT. 

 The following remarks were written by me after the Transit, whilst the 

 gear was being taken on board. [They are slight extensions of the notes 

 written by Mr. Eaton.] The power used was 121. The times are taken from 

 the chronometer Fletcher 950 : 



Ingress. 



hms 



7. 7.45-0,1 f I observed the planet's limb to be complete, and much illuminated at the outer 

 or Dec. 8, > < or lower edge; this was not the time of tirst appearance but some seconds 

 19. 7. 45-0. J ( after it. 



g f Apparently geometrical contact ; but as the light improved after I had given the 



or Dec. 8 > J si o nul I found I was early ; and fearing to lose the time of the more important 



8 10-7 J I phenomena by calling the time- taker's attention away and running it too close, I 



8 10-7 



^ let the better one pass. I should say it w;is about 4 s later. 



3 46-0 i f^ b serve d a considerable difference of light in the black drop ; but the light being 

 or Dec. 8 > J very clla "o eil!)le > and no appearance of n distortion such as the model produced 

 iq. 8. 46-0. J I n a b "o nt dy I cannot think it was the same alteration of light or phenomena 

 L as was known to me as No, 2 of the four to be observed. 



j. 9. o'o, -. 

 or Dec. 8, > 

 19. 9 5-0. J 



o-o -. is time was the instant before the cusps actually joined, the light being scarcely 



I visible between them. There was no sudden connection, but a steady and 

 regular meeting of the cusps. Although the light was dull, it was light com- 

 pared to the other phenomena. 



