PLAINTIFFS EXHIBIT AB-7 1 INDUSTRIAL HYGIENE FOUNDATION OF AMERICA, INC7 (rOAMERLY AIR HYGIENE FOUNDATION) <4400 Fifth Avenue Pittsburgh 13, Pa.

March 5th, 1941 Carbonic Gas and Supply Company, P.0, Box 373 El Paso, Texas Attention: Mr.

April 81, 1941 H* T.

1945 - At the request of Brakeblok - Detroit management, this plant was surveyed because of union agitation.

ADDRESS OF WELCOME by L.E.Hamlin, H.D.

Interestingly enough, during the depths Of the depression in '933, the first Industrial nursing manual written by Violet H.

I May 24* 1948 Arthur J* Vorwald, XD.

*5^ zfii\ .f i- clapperTOn.Rfi^:^'ii&)''st^;M^ nstruction Control, ;DepU . .. > W/Second St./ Muscatiiiei:?

222 CHAPTER 12 1946 Guide ..

368 CHAPTER 19 1946 Guide where 0% -- Oi + St -- Si S\ = computed static (theoretical) draft, experimental conditions.

624 CHAPTER 35 1946 Guide LINE LINE j, SPEED REGULATING CONTROLLER LINE Fig. 12.

832 CHAPTER 45 1946 Guide Elimination oi Static Electricity The presence of static electricity is very detrimental to the satisfactory and economical processing of many light materials, such as textile fibers, paper, etc.

60 CHAPTER 3 1948_' Guide MWi per hour, 'where hi and W\ denote the enthalpy and humidity ratio' of the inside air, respectively.

154 CHAPTER 8 1948 Guide be the same occupancy assumed for determining the outside ventilation requirements outlined in Chapters 12 and 15.

724 CHAPTER 40 1948 Guide values on heating jobs.