tributed within the past month to all members of the Commercial Section. In other words, the 1916 edition supersedes all handbook sheets issued prior to this time with the exception of those sheets issued by manufacturers and referring especially to their devices or apparatus. All other sheets are obsolete or, if duplicated, have been rearranged and issued with a change of page numbers.

No change has been made in the general make-up of the Handbook. It continues in loose-leaf form. The size of the page, 4 by 7 inches, the binder and the punching of the sheets all conform to the standard specifications of the Publications Committee, which have been adopted by the N. E. L. A., the National Commercial Gas Association and many large manufacturers.

Improved Illustrations

A notable feature of the new edition of the Handbook is the fact that all the half-tone cuts have been printed on a special paper, which the Committtee was fortunate enough to find. It is sufficiently tough to stand the strain of use and has a coated surface suitable for printing these illustrations. There are 118 of these special-paper pages.

New Material

All previous handbook sheets have been carefully edited and revised, and a great deal of new material has been added. The detail of this would occupy too much space in this report. It is appropriate, however, that special attention be called to important additions in the Lighting Section, including new material on reflectors, calculation and design, exterior lighting of buildings, and the lighting of motion picture theatres, armories, schools, offices, gymnasiums, corridors, show cases, wall cases and show windows.

For splendid work in connection with this revision and enlargement of the Lighting Section, the Committee and Commer cial Section are under obligations to G. H. Stickney of the Conmittee, and his painstaking and efficient assistant, A. L. Powell.

Some exceedingly valuable data on operating costs recently compiled in connection with important electric vehicle installations will be found in the Vehicle Section. This entire section was revised and increased by the Electric Vehicle Association of

know.cdân ene being especially due to Messrs. W. P. ly and AJ Marshall of that organization

„safment

færd edition of the Han Pook includes:

A section relating to Salesmanship. - The Salesman * His Work

non Lighting Lamps, reflectors, engineering.

sules at. "atıstallation data

A section on Power. Moters and machines, sales and 1. ta latin data.

A Steam Heating Appendix to the Power Section

A section on Electric Heating

alex metho is

An Ele in Vehicle Section
and cost data

Principles, devices and

Sales poi's, installation

All de a members of the Commercial Section, in addition to el Hind ok have received the following equipment,

as had previ us'y been issued to all recipients of the

A desk ħle for keeping all sheets of the hand
not actually in use

A poket binder in which the salesman may carry
h sheets of the handbook as suit his particular
needs, or may be of value in the cases upon which
te is working

wd be seen that every me a ber of the Commercial Sec now have a copy of the Revised Hints & together ; lite hand's ok comp in ent

CONCLUSION

ritter has also under was scufrons on Merchan De Mixing with Central Ston Power, and El and consı ferale niscellaneous material w

interest, in con-lusion to st by J fo

: ahtude of the with which has wen dine d

let's revision of the Hod

unately 200 pages, most of them either rewritten

་་

of rearranged, all of them indexed and prepared for the prover

Proofs of all this work had to be read in galley and page. An edition of 6000 copies was ordered. In printing this more than 200,000 sheets of bond paper were used, and approximately 400,000 impressions were made.

The Committee trusts that the work which has been done by this and previous handbook committees will prove to have been justified by a continuous and effective use of the Handbook by the salesmen of the industry.

The Electrical Salesman's Handbook Committee is technically a sub-committee of the Publications Committee. The Handbook Committee suggests, in the cause of efficiency and the effective working of this Committee, that it be organized as a separate committee acting under the Executive Committee of the Commercial Section. There can be no real connection of any kind between the Publications and the Handbook Committee. The Handbook Committee is a large committee allowed its own appropriation by the Executive Committee, directing its own affairs and handling its own detail, which cannot at any stage be turned over to the Publications Committee. The functions of the two committees differ widely. The Publications Committee prepares and issues advertising matter to be sent to propects of central stations, customers or possible customers; the Handbook Committee's work is to compile and distribute information of value to the salesmen of the industry. To the members of the Handbook Committee it seems unnecessary, confusing and of no possible value to the Association to have this Committee as a sub-committee of the Committee on Publications. Good organization would at this time seem to require their separation.

Respectfully submitted,

MS SEELMAN, JR., Chairman

ER DAVENPORT

EJ EDWARDS

A A GRAY

OR HOGUE
GEORGE H JONES
IVAR LUNGAARD
NORMAN MACBETH

SS NEU

W HONKEN

M PRICE

CE ROBERTSON W C STETSON CH STEVENS GH STICKNEY

REPORT OF COMMITTEE ON WIRING

The Committee has held well attended meetings, in addition uh work by its members at conferences and meetings of

As in the past, its work has been divided among several

STANDARDIZING OF PLUGS, AND RECEPTACLES

In previous reports the Committee has called attention to fat that before standardization can be accomplished the pre„*y step of classification must be worked out With this in

Fas recommended that all receptacles intended for use at arcuits shall be placed in one class. At the time of its is reperts many of the receptacles actually in use on light..''s were rated at 10 amperes, and there was a question the National Electrical Code permitted such receptacles be corrected to the ordinary lighting or branch circuit on h the lad was limited to 600 watts or 6 amperes

reson mendation of the Wiring Committee that the ald clear up this point was not at first accepted, but it of its work of the last year or two most of the manues agreed to rate the receptacles designed for use on branch circuits at 600 watts, even if they were mechanically bele tri aliv, surable for greater kads and, finally, the 1915 in of the Code has made it clear that more than one such 'e may be used on lighting circuits, just as several 250 or sockets may be used. While isolated inspection authoriav still require that separate circuits be run to each recepis is not now res, ured by the Code. The next step was to standardize these recepta les so that f one nanuticturer could go into the receptacles of

When, many of the manufacturers first agreed to re rate their les at 600 watts there were about nine different types the list and several others equally good. It would probably ave been dith, "lt to find say twenty types, a'l non interhargeable and yet approved for general use and most of them re or less general use

The method adopted by our Committee was to get the manu

FOR DINETA NON SEE PAGE YO

facturers together for frank and free discussion. Gradually most of them came to agree upon two types, each having special advantages, and at one time it seemed probable that there would be two types, which would of course be better than twenty.

The manufacturers of each of these types attempted to get together on standard dimensions, so that the plugs and receptacles of each group would be interchangeable. While this was going on, however, most of the manufacturers of one of these types gradually and of their own accord swung over to the other.

Standardization has not yet been accomplished formally, but we are informed that a large number of firms are now dropping the manufacture of all but one type, and that the plugs and receptacles of a great many manufacturers are now interchangeable so far as one fitting the other is concerned, although of course there are and properly may be differences in construction so long as these do not interfere with interchangeability.

The Committee feels that it should not formally recommend any standard until practically all the manufacturers are agreed, but it is convinced that the matter is progressing toward this end.

POLARITY PLUGS

The question of polarity plugs is important, and can be accomplished as follows in the type on which several manufacturers have agreed among themselves: There are two parallel prongs on the plug and two slots in the receptacle for these prongs. Polarity receptacles will have one slot wider than the other. There is no reason why all the receptacles should not be made polarity receptacles.

Polarity plugs, having one prong wider than the other, will not fit non-polarity receptacles at all, if any such should be made, while they will not go into polarity receptacles except correctly. Non-polarity plugs will have the prongs of equal width, and will fit all the receptacles.

Several suggestions have been made to us as to construction and design, but we have replied to all of these that unless they affected the interchangeability of the plugs they should be referred to the manufacturers.

A cut of the suggested standard plug and receptacle is shown but while the Committee hopes that this is a step toward