Resource Type
States
Counties
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City Smoke Ordinances and Smoke Abatement
From Introduction: "In connection with the fuel investigations conducted by the Bureau of Mines much information has been accumulated as to the smoke abatement activities in various cities. The essential features of the information are presented in this report, which, it is believed, will be of public interest and benefit, especially to those communities that are just beginning organized effort to abate unnecessary smoke."
Date:
1912
Creator:
Flagg, Samuel B.
System:
The UNT Digital Library
The Feldspars of the New England and North Appalachian States
From Introduction: "The investigations presented in this bulletin have been undertaken by the bureau with a view to a better understanding of the conditions which confront the producer of commercial feldspar and also with the object of determining wherein the various deposits of feldspar differ."
Date:
1916
Creator:
Watts, A. S.
System:
The UNT Digital Library