--+--------+----+------+----+----+--+---+---+---+---+-----+------+------+------+ Remarks. --+----------------------------------------------------------------------------+ 82|This and the following were observed towards sunset; they exhibit a | |considerable degree of refraction above what is usual. The sights on this | |morning in the same place gave upwards of 1' greater dip. | 83|All other circumstances the same as in No. 82. | 84|Fresh breeze from SE, with a remarkably clear sky. The horizon uncommonly | |sharp. | 85|Wind moderate from WNW. Clear weather. | 86|All other circumstances the same as in No. 85. Parts of the horizon | |observed SSW and NNE. | 87|Parts of the horizon observed WNW and ESE. | 88|The morning has been exceedingly hot before the breezes set in from sea at | |11 A.M. | 89|All other circumstances the same as in No. 89. | 90|After a very hot day. | 91|Parts of the horizon observed ESE and WNW. See further remarks under 93. | |Instruments readjusted. | 92|Parts of the horizon observed NE and SW. All other circumstances as in No. | |91. | 93|Parts of the horizon observed SSE and NNW. These three observations (Nos. | |91, 92, and 93) were made under the most favourable circumstances, and may | |be considered as shewing the accuracy which the instrument is capable of | |attaining. The sea was so perfectly smooth, that not the slightest motion | |could be detected. The horizon at all the parts observed was sharp, and | |better defined than I recollect to have seen it; and, what is not often the | |case, the opposite parts were alike in strength of light &c. The day has | |been hot, but not close, with a light breeze from the Southward. The dip is | |very great, but the observations were made with such care, that there can | |be no doubt of their accuracy. | 94|There had been a light breeze from the North in the morning, but for an | a)|hour before these sights were taken it had been calm. | 94|Nearly the same place as No. 94(a); but the other circumstances were | b)|changed, as the sea breeze at NW had set in about a quarter of an hour, | |whereas in the last instance it was calm. The above angles were taken with | |great care. The horizon sharp. Parts of the horizon observed NW and SE. |