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Subject: "Chemistry."
Subject (Era): Is
Is Is Not
1917
Subject: Is
Is Is Not
Purification

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1.
Observations on the rare earths : the purification of erbium, with special reference to the separation from yttrium, the atomic weight of erbium
Author
Wichers, Edward
Published
1917.
Online
Online book
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
2.
Air diffusion in the activated sludge process of sewage treatment
Author
Mickle, Friend Lee, 1889-1978
Published
1917.
Online
Online book
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
3.
The methods of analysis of non-ferrous alloys : the purification of precipitated metastannic acid
Author
Hsun, Jin Jee
Published
1917.
Online
Online book
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
4.
Observations on the rare earths : the purification and atomic weight of dysprosium
Author
Kremers, Harold Cleveland
Published
1917.
Online
Online book
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online