248 



William E. Ford. 



Appendix 

 For the sake of making the record complete the following 

 new analyses and physical determinations, which were made 

 during this study and which have been used in it, are given in 

 separate form. Analyses numbered I to IV were made by Dr. 

 Walter M. Bradley to whom the author's thanks are especially 

 due. The other analyses and all the physical determinations 

 were made by the writer. 



CaO 



MgO 



FeO 



MnO 



CO2 



Insol. 



Rhodochrosite 



Branchville, 



Conn. 



3-743 

 1.8279 

 1.6057 

 0.47 



12.50 

 4956 

 [37.06] 



II. 



Magnesite 

 Veitsch, 

 Styria 

 3.029 

 1.7073 

 1.5168 

 1.88 

 4376 

 3.20 



50.84 

 0.18 



III. 



Mesitite 

 Traversella, 

 Piedmont 



3-374 



1.7878 



1-5703 



23.92 

 3122 



[44.86] 



IV. 



V. 



Siderite Dolomite 



Allevard, Vorderrheintal, 

 France Switzerland 



3-633 

 1.8303 

 1-5958 

 0.73 



II. 15 



45.46 

 1.27 



[41.39] 



2.890 



1.6839 



1-5037 



30.64 



20.77 

 1.63 

 0.63 



46.71 



Total 100.00 



Mineralogical Laboratory of the Sheffield Scientific School of Yale 

 University, New Haven, Conn., May ist, 1917. 



