F, A. Genth’s Contributions to Mineralogy. 205 
as others of the correctness of my views that harrisite as well as 
cantonite are pseudomorphs after galena. 
On page 177, he gives the analyses by myself (8) and Whit- 
ney (11) of the variety of pitchblende, which LeConte had dis- 
tinguished as coracite, and at No. 11 with a mark of interrogation 
he says: “whether identical with No. 8,” although in my paper 
(this Journal, [2], xxiii, 421) I speak of it as the same mineral. 
On page 425, my species “ barnhardtite” figures amongst the 
alleged to have found tellurium, carbonic acid and cone 
1 ra 
‘Sea has considered it necessary, than to @ 
mg obvious reasons for so doing. wea ; 
1." Page 632, he says that we have no crystallized | eldspar o 
@ bigher amount of acid than orthoclase, and “ baulite” is men- 
ned on page 638 as containing minute crystals of feldspar, 
“Pparently on my authority. Iam not aware that I ever made 
Sth a statement. It is certainly a grave misapprehension of 
™y investigation (Ann. der Chem. und Pharm., Ixvi, 270). This 
