60 S Y L V A BOOK in 



circles. It would also be enquir'd, whether the 

 circles of pricks increase not till Midsummer and 

 after, and the circles of wood from thence, to the 

 following Spring ? But this may suffice, unless I 

 should subjoin 



22. The vegetative motion of plants, with the 

 diagrams of the Jesuit Kircher, where he discourses 

 of their stupendious magnetisms, GPc. could there any 

 thing material be added to what has already been so 

 ingeniously enquired into by the learned Dr. Grew in 

 his Anatomy of Vegetables^ and that of Trunks ; where 

 experimentally, and with extraordinary sagacity, he 

 discusses the present subject (with entire satisfaction 

 of the inquisitive reader) beginning at the seeds, to 

 the formation of the root, trunk, branches, leaves, 

 flower, fruit, &c. where you have the most accurate 

 descriptions of the several vessels, for sap, air, juices, 

 with the stupendious contexture of all the organical 

 parts ; and than which there can be nothing more 

 fully entertaining : So that what Dr. Goddard, and 

 other ingenious men have but conjecturally hinted, 

 is by this inquisitive person (and that of the excellent 

 Malpighius) evinced by autoptical experience, and 

 profound research into their anatomy. To all which 

 we may by no means forget the most Lincean 

 inspector Mr. Ant. Van Leeuwenhock, concerning 

 the barks of trees, which he affirms, and experiment- 

 ally convinces, that that integument, namely, the 

 bark, was produced from the wood, and not the wood 

 from the bark. But this discourse, together with the 

 microscopical figure, (being too long to be here 

 inserted) refers to that most industrious person's 

 letter, Transact. Numb. 296. p. 1843. Let us there- 

 fore proceed to the felling. 



