This is for two copies of the International Library of Technology Electrical Engineering Books. One is from 1923 and is #328 which contains:

Alternating Current Measuring Instruments

Watt-Hour Meters

Voltage Regulation of Alternating Current Circuits

Electric Lamps

Electric Heating

The next copy is from 1924 and is #329 which contains:

Local Distribution of Electrical Energy

Long Distance Transmission of Electrical Energy

Line Calculations

Interior Wiring

Sign Wiring

Both books are in good used condition with wear to edges of the covers,no writing noted on the inside of the books. Please message if you have questions and thanks for looking!