• BEU1I 



with tl i :>ti<>n of a few facta which 



entirely on the mem- 



n and Duryee. Part of 



■ splained above, was published by them 



in I 



marks and separate credits have been generally 



ar as the history of the Montezuma 



nd the early Portland cement plants in the lower Hudson 



val the matter here submitted is merely one long 



of quotati rum the letters or papers of the gentlemen 



mentioned. 



National Portland cement co., Kingston 



The earliest experiments in the manufacture of Portland 

 cement in this state, appear to have been those carried on in the 



endale region about ] v 7-~-70. They were made by a Mr 

 Dunderdale at East Kingston, Ulster co., Messrs Cornell and 



kendall furnishing the capital. The materials used were marl, 

 br<>n<rht by way of the Erie canal from the Montezuma marshes, 

 and a clay obtained near the plant. Cement of a very high grade 

 was manufactured, but the materials and processes used were of 

 too expen-ive a character to permit the experiment to become a 

 financial Buccess. The details of the experiments are not at pres- 

 ent obtainable, but some idea of the methods followed and of the 



era! high quality of the product may be gained from the fol- 

 1 from the published report, by Gen. Q. A. Gill- 

 more, on the cements exhibited at the Philadelphia exposition 

 of 1S7G. 



ft 'is < proper as a subject of general interest to refer 



ae cements not represented in the exhibition. 

 The National Portland cement co., of Kingston, Ulster co. 

 . Y.) 3 Dtly been organized for making Portland cement 



the fourth method above described. 1 The materials employed 



here noted was, as described on a preceding pain: 

 °* ' luble-kilning process, in which the calcareous material was 



bui: re being mixed with the clay. 



