6S On Commerce. 



days between tlieGth of December and the. 21st of February, 

 it would have been put down in the list I have given of ne- 

 bulae. This remark cannot but raise a suspicion, that some 

 comets may have actually been seen under a nebulous form, 

 and as such have been recorded in my catalogues ; and were 

 it not a task of many years' labour, I should undertake a re- 

 view of all my nebulae, in order to see whether any of them 

 were wanting, or had changed their place ; which certainly 

 would be an investigation, that might lead to very interest- 

 ing conclusions. 



XI. On Commerce, Being a second Communication from 

 M1\ Graham, in Answer to our Correspondent Lapis. 



To Mr. Tilloch. 



SIR, 



Jn my last letter T endeavoured to prove, and illustrate from 

 a variety of articles, that no country could produce all that 

 was necessary for the comfort, health, protection, and se- 

 curity of its inhabitants. I likewise showed, by a reference 

 to very barren and uncomfortable situations, that the inha- 

 bitants of such districts, so far from deserting those coun- 

 tries, were rather more attached to the soil than the people 

 of much more favoured climates. Without further recapi- 

 tulation, I will pass on to another observation of your cor- 

 respondent Mr. Lapis. I will not call it an objection, be- 

 cause he does not give his opinion as positive; but he is 

 apt to think, from the different languages spoken by the 

 different nations of the world, as well as from the natural 

 barriers of kingdoms, such as large rivers, long ridges of 

 almost impassable mountains, and the still' more extended 

 ocean, which rolls its mighty waves between different coun- 

 tries, that the Author of the universe never intended that 

 social intercourse between nations which I seemed to argue, 

 but rather that they should be completely independent of 

 each other. I am much pleased with this observation, not 

 so much on account of giving me an opportunity of com- 

 municating my ideas on the subject, but as I consider it a 



matter 



