Perpetuating Engravings on Steel or other Metals, 143 
Fig. 5. and 7. contain the Creed and Lord's Prayer, engraved 
by B. Davies. 
Fig. 8. — 11. are fac similes of Britannia from the same steel cy- 
linder. 
Fig. 12, 13, and 14. shew how the line engraving may be com- 
bined with the engine-work. 
Fig. 15. Is a splendid specimen of the engine-work ; the 1st, 3d, 
and 5th oval, representing copperplate engraving, and the 
2d, 4th and 6th, block or type printing; all the spaces that 
are white in the former being black in the latter, and vice 
versa. 
( 
Sir William Congreve, we understand, has employed an artist 
of the first talents to attempt an imitation of some of the prece- 
ding specimens. It has been considered by most persons as a 
total failure, particularly in the small writing and engine-work ; 
though Sir William is of a contrary opinion, and has publish- 
ed a pamphlet, with the view of impressing this opinion on the 
public. 
Art. XXVI. — Some Ohservatlcms on the Instinct and Opera^ 
tions of Bees., with a Description and Figure of a Glazed 
Bee-Hive. In a Letter from the Reverend William Dun- 
bar, Minister of Applegarth, to the Very Reverend Prin- 
cipal Baird. 
-Agreeably to your request, I send you the few observations 
I made last summer on the instinct and operations of my bees. 
I attach but little value to them, as they are all of minor mo- 
ment, and shrink into nothing compared with the astonishing 
discoveries of Huber. Unimportant, however, as they are, com- 
paratively speaking, they add something to the general stock of 
our knowledge respecting these interesting insects ; and they 
strengthen, in a certain degree, the evidences adduced by Hu- 
ber of their wonderful instinct in more important operations. 
They were made by means of a hive containing only one comb, 
and glazed on each side ; the whole swarm, therefore, half on 
