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A Monthly Journal of Foreign Trade--Established 1877 35 cents a copy $4.00 year Reriiif U `ts.

January 28, 19^7 Mr. cUi'fcrd V, jystell Axtell Block fheraopolis, Wyoming Dear Mr.

I The Literary Digest for November 7, 1925 56 \ou can finish any surface cVvith / GLD33509 GUf>33^10 CO The Literary Digest for November 7, 1925 PERSONAL GLIMPSES Continued Berlin to get completely thawed out.

1.

Reprinted from The Oil and Gas Journal, Tulsa, Okla., Aug. 12, 1926 EXACTLY ALIKE except for the paint yet the tank on the left will lose less oil than the other--why?

D-C MOTOR CONTROL Reduced Voltage--Magnetic--Constant Speed 253 o<-G<O nz mgo 1=0 0^=0 v WHEN ORDERING SPECIFY Catalog number Full load current .

New Withdrawal, Stock Purchase and Loan Privileges Available in Revised Thrift Plan Regulations governing three new features of the revised Thrift Plan, which went into effect January 1, have been announced by the Fund's Trustee.

8004 1923 Wet/Dry Heavy-Du Commercial Canister Vacs Lightweight, powerful and portable wet/dry canister vacs with super quiet operation, designed tor use m facilities requiring equipment at a moderate cost.

Valves The Dole Valve Company 1923-1933 Carroll Avenue Chicago, 111.

f would keep the heat shut off 21 hr. out of a possible 24, and that with an average outside temperature of 16 deg. the heat was on the radiator only a trifle more than 5 hr. per day.

American Society of Heating and Ventilatin Engineers Guide 1924-25 PART I HEATING INTRODUCTION IN an effort to establish a more uniform practice in the design of heating systems and the installation of the necessary equipment by engineers, architects and contractors, the Society has undertaken the compilation of the most practical information available on the subject and for this data has drawn upon the experience of its members, the results of its Research Laboratory investigations, reports Of its technical committees, the Transactions and other reliable sources.

American Society of Heating and Ventilating Engineers Guide, 1924-25 American Society of Heating and Ventilating Engineers Guide, 1924-25 Fig. 55.

American Society of Heating and Ventilating Engineers Guide, 1926-27 and about three times as much gas will be required than if it were burned in a properly designed appliance.

American Society of Heating and Ventilating Engineers Guide, 1928 weather.