DIVISION OF THE NAVY DEPARTMENT. 27 



In this room are provided: — 



(a) Height poles marked in feet and inches for use in measuring and 

 judging heights. 



(b) Standard boards with samples of various sizes of pipes, ropes, 

 bolts, nuts, chains, etc. 



(c) A sample case with samples of various standard fittings and accepted 

 materials. 



(d) Color boards with samples of accepted navy colors. 



At every alternate table for the use of two tables is a rack of photo- 

 graphed booklets of record contract plans as issued. 



The walls of the room are painted yellow with white trimmings. The 

 ceiling of the room and the under side of the gallery are white. 



The room is lighted by eighteen 60- watt tungsten lamps with holophane 

 reflectors. The Ughts are about 9 feet above the floor and are controlled 

 in pairs. Three 40- watt tungsten lamps with ordinary shades are provided 

 over certain desks. In the gallery are located eight 40- watt tungsten lamps 

 with holophane reflectors. 



Electric fans are also provided: — (o) for agitating the air in summer, 

 (b) for exhausting air through openings into the corridor in winter, fresh air 

 coming in behind glass screens in the windows. 



Heavy soUd color red linoleum is used on all walking and standing 

 spaces on the floor and all furniture is made so that cleaning under and around 

 it is easy. 



Plate 25 shows the arrangement of this room. 



The Scientific and Design Branch. — This branch produces the plans, 

 specifications, and calculations for new ships of the Navy. 



It is under the direction of a leading draughtsman with another leading 

 draughtsman directly in charge of the design plan room itself. The design 

 plan room contains ten draughtsmen, eight of whom make and trace the 

 plans and two prepare the specifications, filling what is called the specifica- 

 tions desk. The leading draughtsman and the two draughtsmen working 

 on specifications have desks; each of the others has a table of standard form. 

 This table is exactly similar to one-half of that in the criticism branch except 

 that the top is 8 feet long, of heavy white pine with a trued steel edge, and 

 there are no racks on top of the table. In connection with this steel-edged 

 table we use a special form of steel T-square which holds its shape better 

 and causes less interference with the workman than the usual wooden square. 



There are no considerable plan files in this room and the copy of the 

 finished product for current use is carried in the main plan files, so that only 

 sketches are filed here. Provision is made for such filing. 



