BIAUNA LOA. 163 



Dr. Jndd, but it was found difficult to preserve any of them in a 

 separate form, as tbey were all intermingled in their formation. 



Half-past two o'clock having arrived, Dr. Judd began his return 

 to the bank where he had descended, and reached it after walking an 

 hour and a half: it required another hour to ascend. When they 

 returned, they appeared exhausted with their day's trip : overloaded 

 as they were with specimens, the ascent was more arduous. 



This evening, at sunset, we had a beautiful appearance of the 

 shadow of the mountain, dome-shaped, projected on the eastern sky : 

 the colour a light amethyst at the edges, increasing in intensity to a 

 dark purple in the centre ; it was as distinct as possible, and the vast 

 dome seemed to rest on the distant horizon. The nifjht was clear, 

 with moonlight, the effect of which on the scene was beautiful : the 

 clouds floating below us, with the horizon above them, reminded us 

 of the icebergs and ice-fields of the Antarctic : the temperature lent 

 its aid to the deception. 



Lieutenant Budd, with a party, joined me this day, bringing with 

 him the transit-level, from the ship. Towards evening I had another 

 attack of mountain-sickness, witla much tendency of blood to the 

 head. My steward was also attacked with severity, and several of 

 the men ; but, by aid of the remedies given us by Dr. Judd, the next 

 morning found us all much relieved. 



The dew-point could not be obtained with Pouillet's hygrometer 

 (a capsule). Whenever this was the case, electricity was found to be 

 easily excited : on moving any articles of dress from the person, it 

 would develope itself in sparks. On examination, it was found that 

 our pulses varied during the day, and were very easily excited. Dr. 

 Judd's fluctuated from sixty to one hundred beats, Mr. Eld's from 

 eighty-four to one hundred and twenty, and mine from seventy-two 

 to one hundred and eight. 



The night was favourable for observations, and we succeeded in 

 making many. The wind was from the northeast. The thermo- 

 meter at sunrise was at 20°. The sun did not rise clear, as I was 

 in hopes it would have done, so as to afford me an opportunity of 

 again seeing the refraction, and measuring it. 



The 3d proved fine, and the pendulum-clock and apparatus being 

 arranged and adjusted, the clock was put in motion, and a comparison 

 made with the three chronometers every two hours. 



It being Sunday, and a fine day, the men were allowed to wander 



