AMERICAN INSTITUTE. 541 



Dr. Deck. — The zinc cannot be drawn from it by beat. He would make 

 further experiments. 



Mr. Sellcck had made as good steel from it as he had ever seen, and had 

 made knives, razors, etc., from it. Mr. Gilbert had informed the Presi- 

 dent that he had been able to drive out this zinc by heat. 



Mr, Seelcy. — The French have a metre for trying the adhesive power ; 

 and had found franklinite iron 40.8 to the square inch — other iron 40; 

 and in answer to a question of the Chairman named several books in which 

 the whole particulars had been published. 



The Chairman stated it had been proven that franklinite had a tenacity 

 over fifty per cent greater than other iron. 



American Institute, Polytechnic Association, 



Januarij 6M, 18G0. 



Prof. Mason, Chairman. John Johnson, Esq.,. Secretary pro tern. 



During the hour for miscellaneous business, Mr. Garvey gave a brief 

 description of an instrument called a " Horizostat," for obtaining a horizon 

 at sea under all circumstances. It depends for its action upon the tendency 

 of a rotating disc to maintain the plane of rotation. After describing it, 

 Mr. Garvey alluded to the fact of the government of Russia now employ- 

 ing this invention for the purpose of obtaining a fixed plane to make obser- 

 vations from, and the papers which mention the fact, describe the invention 

 as made by Piazzi Smyth, of England, whereas he (Mr. G.) had described 

 .his invention, and made a model, long before Smyth's was Yientioned ; and 

 Smyth's is a complex" and defective arrangement, whereas his is portable, 

 being held in one hand, and being capable of moving for an indefinite time, 

 while Piazzi Smyth's depends upon a motion given at the commencement, 

 and gradually dying away. 



Mr. Garvey was invited to submit evidence of priority and completeness 

 of invention to the Club, who will investigate it, and, if found satisfactory, 

 endorse his claim. 



Mr. Pomeroy being invited by the Chairman to give some account of the 

 minerals of Missouri, excused himself on account of the extreme shortness 

 of the notice, but gave quite a romantio account of his discovery of the 

 locality of an abandoned silver mine in Missouri. 



The Chairman called attention to an article in the Daily Times, advo- 

 cating the adoption of small cars upon the Hudson River railroad. When, 

 however, some years ago, he urged the employment of steam locomotives 

 in cities, the editor of the Times laughed at the suggestion that within ten 

 years they would be found in large cities. He now advocates the same 

 idea. 



The Chairman suggested that the subject of the evening, franklinite, be 

 examined by the club in the following order : 



1st, Analysis of the pig metal. 



2d, Determination of the melting point.. 



