so as to res’lst the Cold qf the severest Winter. Ill 
must be inserted as long"as the thickness of the entire hive, a plug 
made to fit it of the same length; and when the ventilation is used, 
care must be taken that no light be perceptible by the insects, 
which may be effected either by partially withdrawing the plug, 
or hanging over the hole, at a tittle distance from the outside of 
the hive, a piece of black cloth. Perhaps two such ventilating 
holes may be required ; but experience must determine this. 
The double hives I now recommend, may be used by those 
who think them too heavy ^ merely as cases for the hives which 
may be in use ; removing the covers or cases when any operation 
is to be performed on the hive. 
, Since writing the above, I have seen a contrivance for secu- 
ring bee-hives from being stolen superior to that recommended 
by M. Huish, but only applicable to wooden hives The hive 
is so attached to a stone pedestal, as to render it necessary either 
to knock the hive in pieces, or carry off nearly 200 Ih. weight 
before the thief can secure his prey. By this simple contri- 
vance, all the hives in the extensive apiary at Applegarth- 
Manse, belonging to the Reverend William- Dunbar, are se- 
cured. 
Manse op St Mungo. 
June 4. 1820. 
Art. XVI . — Observations on the Currents and Animalcules 
of the Greenland Sea. By William Scoresby, jun. 
F. R. S. E. M. W. S., &c. In a Letter to Professor Jame- 
son. 
W circumstances among the minuter works of the creation, 
have struck me with so much surprise, as the appearance of my- 
riads of animalcule^, in a sea perpetually covered with ice, ex- 
posed to an average temperature fifteen degrees below the freez- 
* In constructing wooden hives, care must be used in selecting the wood, if 
possible free of knots, and well seasoned. Fir, in general, will be found best suited for 
the purpose ; ash should be avoided, both as apt to yield to the weather and warp, 
and also as being one of the best conductors of heat of the woods generally used in 
this country. 
