1Q2 PETER COLLINSON [1737. 



in such vigorous action, and for want of young shoots and leaves 

 to divert it, by growth and perspiration, the vessels burst, or the 

 circulation stops for want of vent, that the tree soon dies. 



If thee was to observe, all these caterpillars that spin up like 

 silkworms produce a large moth; and all chrysales that thee finds 

 hang'ng naked, produce butterflies, or day-flies. 



If thee was to take the cluster of eggs round the twigs, and keep 

 them till time of hatching, and feed them with the leaves of the 

 tree they were found on, thee might see the whole process; or, if 

 I could have some sent time enough, with an account of what tree 

 they were found on, we have people would think it well worth their 

 while to hatch them. This would be a pretty amusement for thy 

 children. They would soon learn, if a little instructed. 



I have heard frequent accounts of the prodigious flocks of 

 pigeons; but thy remarks on the wonderful provision made by our 

 all-wise Creator, for the support of the creation, are well worth 

 notice. The balance, kept between the vegetable and the animal 

 productions, is really a fine thought, and what I never met with 

 before. But it is more remarkable with you, than with us; for you 

 have wild animals and mast, in greater plenty than we have. 



I can't help but being of thy mind, with regard to the rattle- 

 snake; for, if creatures were bit by him first, I can't imagine they 

 could be able to run away. Pray compare notes with Dr. Kears- 

 ley, who is of the contrary opinion, and supports it very inge- 

 niously. I wish it may be thy lot, without harm, to meet with this 

 creature, to observe his motions: but I am confirmed of his power 

 over men, in the manner thou mentions, by a very curious friend 

 of mine, and a great philosopher, Colonel Byrd, of Virginia, who 

 says, you must not think me fanciful, when I assure, I have ogled 

 a Rattlesnake so long, till I have perceived a sickness at my sto- 

 mach. 



Now, dear John, I have made some running remarks on thy 

 curious letter, which contained so many fine remarks, that it de- 

 served to be read before the Royal Society; and thee has their 

 thanks for it, desiring thee to continue thy observations, and com- 

 municate them. Pray make no apology. Thy style is much be- 

 yond what one might expect from a man of thy education. The 

 facts are well described, and very intelligible. 



I am, with love, thy sincere friend, 



P. Collinson. 



