Cash Account for Year.

Receipts.
Received from Subscribers during

NEW YORK, October 11, 1901.

This is to certify that we, the Finance Committee, have examined the books and vouchers of Eugene Vanderpool, Treasurer, and find that the same are correctly stated and balanced, and that there is due from him in cash the sum of two hundred and thirtytwo dollars and ninety three cents.

ALEX. C. HUMPHREYS,
W. F. DOUTHIRT,

Finance Committee.

APPENDIX TO REPORT OF THE TRUSTEES GAS EDUCATIONAL FUND.

FOURTH SERIES OF QUESTIONS, 1900-SECOND SECTION-PRACTICAL CLASS-AMERICAN GAS LIGHT ASSOCIATION.

I.

2.

5.

4.

5.

What is meant by the term "bond" as used in speaking of brick-work? What is English Bond? What is Flemish Bond? Give sketches as well as descriptions.

Describe, with sketches, a full set of retort house firing and cleaning tools. Do not include in your answer tools for repairing, or coal and coke wagons.

Describe briefly and generally some system of charging retorts by steam or hydraulic machinery.

Describe some form of apparatus for separating water-gas tar from its accompanying water, the purpose being to remove all appearance of tar from the works' drainage. What is meant by the statement-" The specific heat of a certain substance is .750, or is three-quarters that of water"? 6. Is the specific heat of a gas, or vapor, at constant pressure, that is, when free to expand, as gas in a gas-holder, the same, or more or less, than the specific heat of the same gas or vapor at constant volume, that is when confined, as steam in a boiler? Why?

7.

An illuminating gas has the following composition by

volume:

Calculate the heating power per cubic foot, assuming the illuminants to be Olefiant Gas (C,H,) and the water formed by the combustion of the hydrogen and hydrocarbons to pass off as vapor at a temperature of 212° F.

8. Describe the testing of a consumer's meter. Give all the precautions to be observed.

9.

IO.

II.

12.

If you were sent to a house to investigate a complaint of "poor gas" how would you proceed to determine the cause of the trouble?

Name some useful purpose, or purposes, to which tar (coalgas or water-gas) can be applied around gas works, and describe the method of preparation and employment for such purpose.

Describe two methods employed for "venting" oil storage tanks so as to permit the escape, when the tanks are being filled with oil, of the vapor that has accumulated in them and to prevent the formation of a vacuum while the oil is being pumped out, and state their respective advantages and disadvantages.

What is naphthalene? What are its physical properties, and how are the obstructions caused by it removed ?

(Answer to these questions are due December 5th.)

FOURTH SERIES OF QUESTIONS, 1900-THIRD SECTION-PRACTICAL CLASS-AMERICAN GAS LIGHT ASSOCIATION.

I. What size of anthracite coal is best suited for use as the fuel in the generator of a carburetted water-gas apparatus? Give the reasons for your answer.

2.

Describe the putting into operation of a bench of retorts heated by a generator furnace, from the lighting of the fire

to the putting in of the first charge; giving the precautions

to be taken to prevent any injury to the setting.

3. Describe, with sketches, one or more forms of the condensers used for cooling illuminating gas during the process of manufacture.

4.

5.

6.

7.

Should the speed of an exhauster used for the purpose of relieving the retorts of a coal gas plant from the pressure thrown by the rest of the apparatus be governed in the same way as the speed of an exhauster used for drawing gas from the relief holder of a carburetted water-gas plant and forcing it through the rest of the apparatus? Give the reasons for your answer.

What is meant by a "unit of heat" or "heat unit"? What is the difference between quantity of heat and intensity of heat?

A gas with a specific gravity of .750 is carried by a street main over a hill 85 feet high. The gas is at rest for the time. The pressure in the pipe as shown by a syphon gauge at the foot of the hill is 15". What will be the pressure shown by a gauge attached to the pipe at the top of the hill? Give your calculations.

In the answer to question No 7, Third Series, 1900, the yield of ammoniacal liquor per ton of coal is given as 30 gallons of from 8 to 10 oz. (4° to 5o Twaddell) strength. What is the meaning of a degree Twaddell and of ounce when used in this connection.

8. Describe, with sketch of a longitudinal section of both spigot and hub showing outside diameter of spigot, all dimensions of the hub or bell, the shape of the lead groove in the bell, and the depth and finished shape of the lead,the making of a lead joint in a 6 inch cast iron main. Give also the amount of lead and packing used and the length of time that should be required to do the work. What is a Holophane Globe and how does it affect the useful light given by the source of light over which it is used?

9.

10.

In setting a gas range which has an oven burner and four top burners what size of pipe should be used, and to what size meter should it be connected?

II.

12.

What are the rules by which to determine the proper size of house piping to be used, when the number of lights to be supplied and the length of pipe along which they are to be placed are known?

Describe the preparation and use of cement mortar for brick work construction, with the precautions to be observed to insure strength and uniformity.

(Answers to these questions are due December 1st.)

ANSWERS TO FOURTH SERIES OF QUESTIONS, 1900-SECOND SECTION PRACTICAL CLASS-AMERICAN

GAS LIGHT ASSOCIATION.

Answers to all these questions, except Nos. 1, 3, 7, 9, 11, and 12 have been published in previous volumes of the Proceedings, and. can be found there, as follows:

The answers to Questions Nos. 1, 3, 7, 9, 11, and 12, are as follows:

1. What is meant by the term "bond" as used in speaking of brick work? What is English bond? What is Flemish bond? Give sketches as well as descriptions.

Ans. "Bond" in brick work denotes the uniform system in accordance with which the bricks are placed in the wall.

English bond is a system in which all the bricks in any one course are either headers (bricks laid with their length perpendicular to the face of the wall), or stretchers (bricks laid with their length parallel to the face of the wall). Sometimes the courses. of headers and stretchers alternate, but usually there are several courses of stretchers for each course of headers. In ordinary walls the proportion of stretcher courses to header courses is sometimes. made as high as seven to one, but this makes a wall which is weak transversely, since stretchers give longitudinal strength and headers transverse strength. For the walls of gas works buildings, at