July 17. COUNTRY GENTLEMAN’S COMPANION. 267 
WEEKLY CALENDAR. 
I) 
D 
Weather near London in 
1853. 
Day ot 
Year. 
ax 
W 
JULY 17—23, 1855. 
Barometer. 
Thermo. Wind. 
1 
Rain in 
Inches. 
Sun 
Rises. 
Sun 
Sets. 
moon 
R. & S. 
Moon's 
Age. 
LilOCK 
bf. Sun, 
17 
To 
Peacock Butterfly. 
30.058—29.9fi5 
I I 
71 — 48 S.W. 
02 
4 a 4 
7 a 8 
10 
4 
3 
5 
46 
198 
IS 
w 
Large Tortoiseshell Butterfly. 
30.012—29 979 
76-46 S.W. 
_ 
5 
6 
10 
17 
4 
5 
52 
199 
19 
Th 
White C Butterfly. 
29 9 S 0 — 29 . 96 O 
72—43 S.W. 
_ 
6 
5 
10 
29 
5 
5 
56 
200 
•20 
F 
Purple Emperor Butterfly. 
Sun’s declinat., 20° 34' n. 
30.084-30.066 
80—48 S.W. 
_ 
8 
4 
10 
39 
6 
6 
0 
201 
21 
S 
30.173—30.163 
83-46 S.W. 
_ 
9 
3 
10 
51 
7 
6 
4 
202 
22 
Son 
7 Sunday after Trinity. 
30.204—30.148 
84-45 S.W. 
— 
10 
2 
u 
4 
3 
9 
6 
7 
203 
23 
ax 
Lage Heath Butterfly. 
30.159—30.152 
89—56 S. 
— 
12 
1 
11 
21 
6 
9 
104 
arETEOROLOGY of Tim Week.—A t Chiswick, from observations during the last twenty-eight 
years, the average highest and lowest tern- 
peratures ot these clays are 72 . 8 U , and 52.1°, respectively. The greatest heat, 94°, occurred on the 17 th, in 1S34; 
on the 18th, in 1851. During the period 99 days were fine, and on 97 rain fell. 
and the lowest cold, 39°, 
SCALE OF INCH35. 
Next among our hardy Ferns come the Aspleniums, 
and first among these, still adhering to the alphabetical 
order, is 
ASPLE ’NIUM ADIA'NTUM-NIGRUM. 
This, the Black Maiden-hair-like Spleenwort, is popu¬ 
larly known as the Black Maiden-liair, and Oak Fern. 
Its main root is black, scaly, and furnished with many 
wiry, dark-coloured rootlets. The fronds rise from the 
crown of the root, and vary in height from three inches 
to nearly two feet. The specimen fronds from which 
our drawing was taken, and which is about one-third 
the natural size, were about fifteen inches high. These 
greater heights are attained by the Fern when growing 
in a shady situation and rich soil, as was our specimen 
at Sherfield, in Hampshire. The stem of the frond is 
dark cliesnut-coloured, and glossy; the part joining the 
root scaly; about half of its length bare, aud the other 
half leafy. The leafy portion has a lengthened - tri¬ 
angular form, the lower pair of the leaflets being 
longest, each pair above them being gradually shorter 
and shorter, until they pass insensibly into the single 
terminating leaflet. The leaflets are also lengthened- 
No. CCCLY. You, X1Y. 
