unites brevity with all the most important precepts required 

 in that valuable branch of domestic produce. It is also clear 

 and lucid, and free of all accessary details, little to be called 

 for within the short period of time necessary to make a silk 

 crop. It is evident that Mr Cobb has been many years a 

 practical culturist, and could also embrace the interesting 

 cares of the filature even further than that of making market- 

 able raw silk, which is not frequently attended to by silk 

 growers. It is on this principle only, meaning that of divid- 

 ing among various branches, hands and stages, all the opera- 

 tions required for the cultivation and manufacture of silk, 

 that national wealth from this rich produce can be depended 

 upon. One only individual cannot be a perfect operative in 

 all stages and divisions of the art, but he can become skilful 

 in many or several of them, if at each degree he command a 

 marketable produce. I conclude with observing that the 

 work of Mr Jonathan H. Cobb deserves the confidence of the 

 public, and its circulation should be encouraged. 



FELIX PASCALIS, M. D. 



