548 
viously impossible. Tube stations are connected with the new as with 
the old type of post. 
APPENDIX 
(IIIf) In the New York Stock Exchange quarters in 1928 there 
were 2,114 telephones, of which 1,615 were members’ private wires 
to the floor. On these latter approximately 1,500,000 calls were trans- 
mitted each five-hour day. Between 1,050 and 1,100 members’ tele- 
phone clerks were engaged on the floor in handling orders. Exclusive 
of wires strung for the service of tenants, approximately 70,000 miles 
of telephone and telegraph wires were used in the Exchange building. 
(ITIg) Telephone booths on the Exchange are connected with the 
stock posts by a pneumatic tube system containing 35 miles of alumi- 
num tubing which runs beneath the floor, and six 75-horsepower 
compressors delivering 30,000 cubic feet of air per minute at 1% 
pounds pressure. 
From a chemical standpoint, at any rate, the atmosphere on the 
floor is singularly pure and invigorating. The Exchange has long 
employed a refrigerating system for cooling and filtering the air in 
its building; on especially humid days as much as four gallons of 
water a minute have been extracted from the atmosphere. Recently, 
to further purify the air on its floor, the Exchange also installed a 
fourteen tube ozone machine capable of delivering 210 ventilating units. 
(IITh) On special occasions, eminent American and foreign visi- 
tors, and also partners of Stock Exchange members, have been 
admitted on the floor with an escort during business hours. Further, 
under prescribed conditions (see Constitution, Article XII, Sec. 7), 
the partner of the President of the Exchange, though not an.Exchange 
member, may exercise the privilege of transacting business on the 
floor for the account of the firm of which the President is a member. 
This privilege may not, howéver, be exercised by such a partner while 
the President himself is engaged in the transaction of business on the 
floor of the Exchange. A like privilege may also be extended to a 
partner of the Vice-President of the Exchange, the Chairman of the 
Committee of Arrangements, the Chairman of the Committee on Busi- 
ness Conduct, and the President of the New York Stock Exchange 
Building Company. Stock Exchange employees are permitted on the 
floor in uniform. As for employees of Stock Exchange members, 
telephone clerks are permitted in the members’ telephone booths and 
specialists’ clerks inside the new hollow stock posts; neither of these 
places, however, is technically a part of the Exchange trading floor. 
(IIIi) An active Personnel Department, under the direction of the 
Committee of Arrangements, supervises the work of the younger Ex-