Call Number (LC) Title Results
I 28.125: Boron in ... / 1
I 28.126: Bromine in. 1
I 28.127: Diatomite in. 1
I 28.128: Graphite, natural in ... / 1
I 28.128/2: Graphite in ... / 1
I 28.129: Iodine in 2
I 28.130: Mica in.
Mica (natural) in ... / 		2
I 28.131: Kyanite and related minerals in 1
I 28.132: Nitrogen in. 1
I 28.133: Perlite in. 1
I 28.134: Salt in.
Salt in 		2
I 28.134/2: Directory of companies and plants producing salt in the United States.
Directory of companies producing salt in the United States. 		2
I 28.135: Sodium compounds in. 1
I 28.135/2: Soda ash and sodium sulfate.
Sodium compounds. 		2
I 28.136: Talc and pyrophyllite in.
Talc in . 		3
I 28.137: Vermiculite in. 1
I 28.138:  
I 28.138 Beryllium in. 1
I 28.140: Clays in. 1
I 28.141: Columbium (niobium) and tantalum.
Columbium (niobium) and tantalum in ... 		2