‘THE METEOROLOGY AND GCLIMATE OF PLYMOUTH. 44] 
as I have kept observations, I was obliged to compare the same 
years with each place mentioned in the table. Then, assuming 
there would be the same proportional difference between the years 
I was able to procure and the sixteen years at the place, as there 
was between the same years and the sixteen years at Plymouth, I 
have constructed the table reduced to sixteen years’ average. Let 
me explain myself. For Brighton I obtained the returns for twelve 
years, from 1868 to 1879. I then averaged my observations for 
the same twelve years; and I assumed that the average for sixteen 
years at Brighton would bear the same proportion to the twelve 
years I had procured, as the average of sixteen years’ observations 
at Plymouth bore to the same twelve years here; and it is on this 
principle the table is calculated. 
A COMPARISON OF METEOROLOGICAL PHENOMENA 
REDUCED TO SIXTEEN YEARS’ AVERAGE. 









TEMPERATURE, RAINFALL. 
g 7 a DURATION OBSERYER’S 
PLACES. o os =a @d aH ao? OF 
af #2 5 s Bea 5 £5 OBSERVATIONS. NaMx. 
oi 4 a2 asg ot 
<g | ag | <4 “23 445 
Penzance .| 55°99 | 47-93 | 51°96 || ...... 45°03 || igen yeagrg, | W- Hoskin Richards. 
Truro*  . | 58°48 | 45°09] 51-79 || 196 | 41°04 fees herhi Dr. Barham. 
Prymourn .| 58°18 | 45°05 | 51-62 || 189°12 | 43-56 ee Aeneas J. Merrifield. 
. . : : : 4 years 
Toravay  . | 57°28 | 44°55 | 50°92 || 185°81 | 39°40 || joer oa E. E. Glyde. 
Trrenmoutn | 58°80 | 44°71 | 51°75 || 179°09 | 36°52 Henao Dr. Lake. 
Bricuton . | 56°38 | 44:07 | 50°22 || 162°86 | 29°01 wee y 1879. F. E. Sawyer. 
* The whole twenty-five years’ averages are inserted for Truro. 
For Penzance and Torquay I have been enabled to enter more 
fully than for the other places, and the results I have deduced are 
as follows : 
For Penzance.—The summer heat of July and August is 33° less 
