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months in which the observations are deficient, but as during 
some part of the period the register runs parallel with the one at 
the Institution, it may be useful to compare the two, leaving out 
of consideration, as in the case of the Ensleigh register, those 
months in which observations were not made at both places. 
The result of the comparison is as follows :—The mean winter 
temperature at Darlington Place is 0°.7 lower, and the mean 
summer temperature 1°.6 lower, than at the Institution. In that 
extremely hot month, July 1868, the hottest that has occurred 
since the commencement of the Institution registers, the mean 
temperature at Darlington Place was 29.6 lower than in the Insti- 
tution Gardens: hence Darlington Place has the advantage over 
that part of the town in summer in being cooler,—the difference 
probably increasing as the heat increases ;—while the town has 
the advantage in winter in being slightly the warmer of the two 
localities. It is noteworthy also that the difference in the mean 
temperature between Darlington Place and the Institution in 
winter for the period in question is found to be exactly the same 
in each of the three months of December, January, and Febru- 
ary, which together make up the winter season, leading to the 
belief that the difference as above stated is pretty constant. 
With regard to the highest and lowest temperatures, taking all 
the seasons together, the mean maximum at Darlington Place is 
0°.5 lower than at the Institution, and the mean minimum 09.5 
higher. The mean daily range, therefore, is 19.0 less at Darlington 
Place than at the Institution Gardens. 
The above results seem to accord in a general way with the 
results of the Ensleigh observations, the differences noticeable 
being probably due to the greater elevation of Ensleigh above the 
river. 
Four years’ observations in Belmont since those in Darlington 
Place, viz., 1870, 1871, 1872, 1873, compared with the Institu- 
tion registers for the same years, yield very similar results to those 
obtained in Darlington Place, the mean temperature, all seasons 
