PROCEEDINQS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. II, pp. 41-68. July 25, 1900. 



A NEW STONY METEORITE FROM ALLEGAN, 



MICHIGAN, AND A NEW IRON METEORITE 



FROM MART, TEXAS.^ 



By George P. Merrill and H. N. Stokes. 



CONTENTS : 



The Allegan Meteorite 41 



History and Petrography 41 



Chemistry , . 47 



The Mart Iron 51 



History and General Features ,....,.... 51 



Chemistry 52 



Supplementary Note by G. P. Merrill 53 



THE ALLEGAN METEORITE. 



HISTORY AND PETROGRAPHY. 



A LITTLE after eight o'clock on the morning of July 10, 

 1899, there fell on what is locally known as Thomas Hill, on 

 the Saugatuck Road, in Allegan, Michigan, a stony meteorite, 

 the total weight of which cannot have been far from seventy 

 pounds, although, unfortunately, it was badly shattered in strik- 

 ing the ground, and its exact weight can never be known. 



•These meteorites have been the subject* of a preliminary notice by Dr. 

 Merrill in Science for November 24, 1899, and the Allegan stone by Mr. H. L. 

 Ward in the American Journal of Science for December, 1S99. The general and 

 petrographic description are by G. P. Merrill, and the chemical examination is 

 by Dr. H. N. Stokes. The chemical analyses v?ere made in the laboratory of 

 the U. S. Geological Survey and are published here by permission of the 

 Director. 



Proc. Wash. Acad. Sci., July, 1900. (41) 



