122 THE CULTURE 



Notwithflanding that the particulars 

 which I have fet down on this head, will 

 inform you pretty well of the times of their 

 ficknefs, yet to be more perfe6l in it, you 

 mufl add your own diligence of obferva- 

 tion; and alfo confider the climate and 

 weather, which if it be cold or moift, ge- 

 nerally retards and lengthens out the times 

 of thefe changes and moultings in the filk- 

 worm ; but your own experience, join'd 

 to the tokens and marks which are given 

 above, will enable you readily to know 

 what ftage of life, and what condition the 

 worms are in, and alfo to know what will 

 next happen, and confequently what ac- 

 commodation and management you are to 

 prepare for them. Their times of moulting 

 being, therefore, the principal thing which 

 regulates many particulars in your atten- 

 dance, and which when well knov/n will 

 eafe you of much trouble, I need not in- 

 fifl how much they are to be regarded. 



The time preceeding each moulting of 

 the filkworm may be called one age -, fo 

 that to the fourth moulting there are four 

 ages J and from the fourth to the time of 

 its being ready to fpin may be reckoned a 

 fifth age. Each age is about five days 



long 



