90 J^atwalisV s Calendar. 
Bees kill their drones. The swallow-tailed Butterfly (^Pupilio Mac/iao}i)&p^es.rs. 
The Whaine or Burrell-fly lays its eg'gson Horses. Black-eyed Marble, Pea- 
cock, Grand Admiral, Orange-tip, Tortoise-shell, and Blue Argus Butterflies 
appear; the Elephant Hawk Moth, and many other species. Beetles are nu- 
merous — 9^ are the Dragon Flies. The House Fly has scarcely beg-un to be 
numerous in the house. The Harvest Bug {^Acanis Ricinns) the common 
Gnat and Musqviito are very troublesome at the fore part of the month. Sto- 
iiin.ri/s Ca/ri/franf, which much resembles the House-fly, is now a great tor- 
ment to cattle. 'I he nest of the Mason Bee, may occasionally be seen sticking 
to a wall, like a patch of mud. The Vicindelta may be met with in great 
quantities on dry banks. The Caterpillar of the Vhalann TVavarki will, if not 
closely looked after, attack the Gooseberry trees. Also that of the P. Grossu- 
laria will begin to strip the currant trees of their foliage. The P. Sercitella 
will in this as well as in the last month, introduce themselves into clothes 
boxes, and deposit their eggs, which will now be very numerous and trouble- 
some. The Crane-fly (Tipi/la) are now very numerous. The T. Olcracca 
feeds on the roots of cabbage. The Wheat-fly, (T. Trifice) lays its eggs in 
a single ear of wheat, and would soon be very destructive, were it not for its 
numerous natural enemies. 
ORNITHOLOGY. 
Under this head we intend to give short notices of the arrival and departure 
of the migratory birds, and such other particulars of the habits of other species 
as may be interesting; and we would recommend to our readers, the study of 
the manners and habits of birds, rather than the making collections of spe- 
cimens. In order, however, that they may be able to preserve properly 
such as may fall in their way, we intend in a future number to give easy 
directions for the preserving these and other objects of Natural History. 
Many of the summer birds of passage, as the Swift, Hiricndo Aptis; the 
Wheat-ear, Si/lcia (Enautlie; the Night-jar, Caprinuilgii^ EuropcBUs; &c. begin 
to depart and others which still remain with us have become silent. This ren- 
ders it difficult to tell the exact time of their departure, and we should feel 
happy in receiving communications from our correspondents on this subject. 
The Turtle Dove, Columha Tnrtur-y departs. The Stone Curlew, Charadrius 
CEdicnenms begins to congregate previous to its departure. Their shrill note 
may now be heard in the night in Norfolk and the southern counties. Young 
Swallows and Martins begin to congregate. 
METEOROLOGY. 
Barometer.— Mean height 29,891 iii.jhes. Highest 30,260. Lowest 29, 356. 
Thermometer. — Mean temperature, 61,6 degrees. Highest 82. Lowest 41. 
Rain. — Mean quantity, 1,153 inches. 
Evaporation — Mean quantity, 3,327 inches. 
