101 
on the character of the vegetation of this region as its geological 
environment. The altitude of its hills and mountains and the 
character of its soil are undoubtedly determining factors of no 
small moment. But its sunshine, its rain, and the period between 
its frosts are equally worthy of notice. 
It is no less a fact that the flora of Northampton County is 
in a large measure the product of our climate. This is of the 
mountain type, with rigorous winters. At Easton the average 
annual snowfall is about thirty-five inches and the lowest tem- 
perature recorded in eighteen years is 14° F. below zero. The 
highest temperature during the same time is 99? F. For a period 
of twenty-five years the normal annual temperature was 50.8? F. 
The extremes of temperature are greater in the valleys than on 
the uplands. The first killing frosts of autumn generally occur 
about the latter part of October. The last frosts in spring are 
usually during the month of April. The average number of rainy 
days with a precipitation of .o1 inch or more was 114 per annum. 
The following table, covering a period of ten years, taken from 
the records of the Weather Bureau of the United States Depart- 
ment of Agriculture showing the monthly, annual, and average 
precipitation in inches and hundredths for Bethlehem, will, no 
doubt, be of considerable interest. The elevation of Bethlehem 
is given as 260 feet. 
| - T t 
| Р В раа У 
Д ы, ГГ CY ELTLELT 11 
$ 5 5 Е & я 8 "ua 3 £e S Z 8 | 
> ига ти гага га аа, л к Та Oe ee Ҹ 
1888 5.08 | 3.50 | 3.84 | 3.30 | 2.84 3.12 | 2.64 | 9.20 |10.03 2.77 | 3-82 | 3.60 | 54.64 
х 1.94 | 3-35 | 4-30 | 4-30 5.28 | 9.93 | 4.10 6.14 3.30 | 8.72 | 1.66 | 57.68 
1890 2.28 | 4.43 | 6.12 | 2 ri 3-10 | 6.02 | 5 3-51) 6.17 | 0.82 | 2.98 | 51.37 
1891 5.62 | 3.88 | 5.38 |І 2.29| 2. 80 | 5.45 I.89 | 4-11 | 44.01 
1892 5.76 | 0.62 | 4.67 | 0.70 | 4.40) 3.89 | 1.37 | 3.33 | 2 44 | 6.70 | 1.60 2 
1895 4.04 |0 2.31 | 4-46 | 2.33 4-48 | 3-84 | 2.96 | 0.6313 2.61 
1896 | 1.26 | 6.41 | 5.82 | 1.27 | 6.30) 3.60 | 6.13 | 2.22 | 3.68| 2.77 | 4.32 | 0.70 | 44-48 
1897 |2.35|2.57 | 2.50 | 3.41 | 6.05 4.03 | 4.84 | 3.64 | 2.10| 1.22 | 5 22 | 42.92 
M'ns | 3.53 | 3-51 | 3-78 | 2.77 | 5-13| 3-54 | 4-53 | 4-35 | 4-27 3-09 | 4.03 | 2.88 | 45.43 
In addition to its geology and climate, its commerce is another 
factor which must be taken into consideration in a survey of 
