NOTEj ON THE MANAGEMENT OF SILK WORMS. 89 



to the heap, may feel a just claim to his share in the honor of 

 contributing to the substantial foundation on which the subsist- 

 ence of animal life, the exercise of all intellectual and moral 

 energy, and the improvements and comforts of human society 

 primarily and mainly depend ; agriculture, the mother of all the 

 arts and the basis of all national prosperity. 



Henry Colman. 



NOTE, 



on the management of silk worms. 



In the essay on the management of silk worms, published in 

 the Society's Transactions, 1831, page 86, and other manuals 

 on the same subject, it is recommended that the air in the room 

 in which silk worms are kept, should be purified by the use of 

 the Chloride of lime or Chloride of Soda. 



Since the publication of this direction, the Chloride of lime 

 has been extensively used in our cities and large towns as a 

 preventive of Cholera — and something more learned of its ef- 

 fects, than had been before known. It has been found when 

 used freely, to drive all the rats and mice from cellars and houses, 

 and we strongly suspect that it cannot be used safely where silk 

 worms are kept. We are in some measure confirmed in this 

 suspicion by the extensive mortality among silk worms kept in 

 a room where it was used in this county the last season — and 

 until these suspicions can be removed by experiments, we would 

 recommend that the Chlorides be classed among the bad smells 

 injurious to these tender insects. 



An act for for the encouragement of the cultivation of silk, 

 passed at the last session of the Legislature, offering bounties on 

 this subject ; which will be worthy the attention of those engag- 

 ed in this business. 

 12 



