AMERICAN INSTITUTE. 177 



Benjamin Pike & Son, 518 Eroadway, for superior surveying 

 and optical instruments. Silver medal. 



Adam Ehrgott, 69 Fulton street, for surveying instruments 

 with levels. Silver medal. 



Felirens & Albrecht, 82 Fulton street, for fine drawing instru- 

 ments. Silver medal. 



James Kelly, Sag Harbor, L. I., for very accurate fractional 

 scales. Silver medal. 



B. Goetz & Co., Philadelphia, Pa., J. V. D. Wyckoff, agent, 152 

 Broadway, for a diffusive daylight reflector. Silver medal. 



Samuel B. Smith, 77 Canal street, for a compact electro-mag- 

 netic machine. Silver medal. 



J. E. Cheney & Co., Rochester, N. Y., Prescott & Shotwell, 

 agents, 63 Maiden Lane, for a very convenient rain-water filter, 

 (Redzie's Patent). Silver medal. 



Thomas E. Dillon, 20 Fulton street, for an improvement in the 

 needle-point of the mariners' compass. Diploma. 



John Tagliabue, 23 Elm street, for a photographic hydrometer. 

 Diploma. 



Lyon Manufacturing Co., 11 Gold St., for Otis' improved 

 lightning conductor. Diploma. 



R. D. Dwyer, 15 South William street, for an improved 

 Salamander conducting rod. Diploma. 



Fairbanks & Co., 189 Broadway, for an ingenious gold coin 

 detector. Diploma. 



Fairbanks k Co., 189 Broadway, for a post-office balance. 

 Diploma. 



D. Minthorn, 47 Warren street, for inhalers and physiological 

 apparatus. Diploma. 



Minerals. 



. Judges — Lewis Feuchtwanger, A. D. Frye. 



F. F. Thompson, 2 Wall street, for specimens of Breckenridge 

 coal, the products such as Kerosine, Naptha, &c. Silver medal. 



N. J. Franklinite Iron Co., FraukUn, Sussex co., N. J., 

 Thaddeus Selleck, agent, Greenwich, Conn., for specimens of 

 Franklinite ore, and cutlery manufactured from pig iron, separated 

 from the Franklinite. Silver medal. 



Geo. Lambert, 648 Broadway, for specimens of Silesian marble. 

 Diploma. 



[Am. Inst.] 12 



