and on their appUcaUufi to Telescopes and Microsco27es. 107 
hitherto been subjected to examination, is but of limited extent ; 
and it is only by extending the power of vision, that we can 
hope to penetrate into new regions. There are worlds within 
our reach not less interesting, than those which elude ouw re- 
search by their immeasurable distance. The laws which govern 
them, and the beings by which they are inhabited, are alike un- 
known to us ; and though ignorance has endeavoured to throw 
an air of ridicule on the study of animalcular existence, yet we 
may safely affirm^ that the functions of minute bodies, must be 
regulated by laws essentially different from those of larger ani- 
mals, and that those planetary masses, which astonish us by their 
magnitude and splendour, afford fewer subjects of scientific re- 
search, than those portions of apparently dead matter winch we 
daily trample under our feet. 
Aut. XVIII . — Account o/‘ a Map of the Country between the 
Erawadi and Khi(jendu< 2 n Rivers. By Francis Hamilton, 
M. I). F. R. S. Lond. & Edin., and F. A. S. L. & E. Com- 
municated by the Author. 
rmS Map, which has been reduced to half the original size, 
I procured at Amarapura from tlie slave who communicated 
the general Map of the empire of Ava, already published, (P/«7. 
Journal^ Vol. II. p. 26T). All tlie towns in it are denoted bv 
circles ; but the royal residence (Nro-do) or Amarapura, is distin- 
guished by a double circle (Mro) ; cities are distinguished by a 
single one, and villages (Rua) are marked by a cross in the centre. 
In the reduced map, the distance between the junction of 
the two great rivers and the capital being 1.89 inch, and the 
actual distance being about sixty geographical miles, we should 
have a very little less than thirty-two geographical miles to the 
inch. According to this, Kaunton, on the frontier of China, 
the Quantong of Mr Arrowsmith, should be 208 geographical 
miles from Amarapura ; but, according to him, this distance is 
only 114 miles ; nor do I here suspect him of any very material 
error. In using this map, therefore, no scale can be safely 
adopted ; the more especially as from Mredu to Maenghien, 
near tlie inouth of tbe Nerinzjua, map reekons seven days 
