REPORT OF MANAGERS THIRTY-THIRD ANNUAL FAIR. 29 



To the Polytechnic Association of the Institute the managers have 

 assig7ied the following subjects : 



1. For the best machinery for spiuning and weaving flax, 



Large gold medal. 



2. For the best lifting and force pump by hand power, 



Silver medal. 



3. For the best invention for the amelioration of camp life, 



Gold medal. 

 4.. For the best novelty in mineral building materials. 



Gold medal. 



5. For the best machine for preparing mineral building mate- 



rials _ Gold medal. 



6. For the best novelty of practical value extracted or manu- 



factured from coal oil or coal tar Gold medal. 



7. For the best improvement in the making of iron or steel, 



Gold medal. 



8. For any new preparation or application of India rubber, 



Large silver medal. 



9. For the best lamp for burning coal oil without a chimney, 



Gold medal. 



10. For the best refrigerator Large silver medal. 



IL For the best novelty in railroad tracks.. Gold medal. 



12. For the best machine for setting and distributing type. 



Gold medal. 



13. For the best farm hygrc^eter, to cost not more than $2, 



Silver medal. 



14. For the best mode of heating houses Gold medal. 



15. For the best original research or monograph on any subject 



pertaining to the science of chemistry or mechanics, or their 



practical applications ._ Gold medal. 



Two discretionary premiums (gold or silver medals,) to be deter- 

 mined by the Board of Managers. 



Inventors and others wishing to bring before either of the 

 Clubs herein named, any article for examination and competition, 

 may present the same at the rooms of the Institute, to Mr. John 

 W. Chambers, recording secretary of the Board, at any time dur- 

 ing business hours. All communications on the subject addressed 

 to Mr. Thomas McElrath, corresponding secretary of the Insti- 

 tute, will meet with immediate attention. 



The Polytechnic Association meets every Thursday evening, 

 and the Farmers' club every Monday, at noon, at which times the 



