JOURNAL oF GEoLocy, VoL. XXIX, No. 3 Pais, JUL 
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1) 166 ee Nepyeommmemmt 
ce et mete SE 
£ 
A. Soda orthoclase inverting to soda microcline, called 
“Orthoclase, var. Adularia,”’ Eggerhorn, Switzerland. Polarized 
light. X30. Specimen 989. 
B. Microcline microperthite (hypoperthite), called “‘Amazon- 
stone,” Amelia Court House, Virginia. Polarized light. 30. 
Specimen 992. 
