rniiisuclidns Sariclv .Vi/t'i// .Irrlillcrls and Mariiic I'.ntjincrys. I'd!. Jo, /p.v. 



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'JO illiisl rule JHij^cr on "h.lcclric . I ii.villiirics nit Alcniiaiil Slii/^s." 

 hy /:'. P. Pickinsdii, /;.V(/., Mciiihcr. 



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