408 OBSERVATIONS ON THE DISEASES, &C. 



by the application of the Composition, healthy trees 

 have issued, which have, in the space of five, six, 

 seven, or eight years, attained to a size and height 

 which, it appears to us, that trees sown or planted 

 seldom attain to in thrice the time. With a view 

 to ascertain, as far as was in our power, the quality 

 of that wood which by the application of the Com- 

 position had been formed in the decayed and in- 

 jured parts of trees, we cut pieces of it out, 

 and compared them with other pieces cut out of 

 the original wood of the same trees, and, after as 

 accurate a secreting and comparison as we were 

 enabled to make, we could not discover any 

 difference either in the colour or texture. 



Upon our observing to Mr. Forsyth, that we 

 had not yet seen any specimens of the operations 

 of his Composition upon Oak-trees, he informed 

 us, that, having at first confined his experiments 

 to other trees, which were in a state of greater 

 decay, he had none of the same date (viz. from 

 two to eight years) to shew us, but that we might 

 see many specimens, of near two years standing, 

 equal in their progress to the rest : accordingly we 

 examined various experiments upon Oaks ; of 

 which the progressive state was so perfectly similar 

 to that of the other species of trees, that we should 

 not be justified in any doubt upon that head ; the 

 event, also of comparing the new wood with the 

 old was the same. 



To report at large our observations upon the 

 effects of the Composition applied to different fruit- 



