CONTRACTORS: These splendid refrigerating Machines are available to you through many of the leading manufacturers of refrigerating, air conditioning and fan equipment.

The use of the by-pass around the heating coils permits the mixture of hot and cold air in any desired proportions, by the use of a mixing damper at the point where the two ducts from the heater, and from the by-pass, join to form one duct leading to the room.

Prell reported in 1936 the occurrence of extensive arsenical injuries among the domestic and wild animal life in the region of Freiberg, Saxony, where numerous smelters (silver and lead) released arsenic containing fumes into the air.

I think it is quite clear that wo can not expect people like Greenburg and Bloomfieia who aro among the leading experts in thi3 special field in tho country to work under the direction of Dr.Sappington, and the seme problem will ailso in other eases as.

CONTRACTORS: Universal Cooler refrigerating units are available to you through our customers, the leading manufacturers of refrigerating and air conditioning equipment.

I think the betting is distinctly on your side but I cannot see you have proved anything but that powerful ventilation makes the lead hazard fromethyl gas neg ligible or perhaps nil.

Liquid Aluminum Paint Black Board slating Blak-En-Al Leads and Zisoe Flat Brick L..

indication that concentrations of PCBs in humans may lead to a wtdo rajye of harmful effecta."

CONTRACTORS: These splendid refrigerating Machines are available to you through many of the leading manufacturers of refrigerating, air conditioning and fan equipment.

MANUFACTURERS ENAMELS STAINS -VARNISHES PIONEER WHITE LEAD PAINT FOR EVERY PURPOSE Quality in Ererf <Drop m , cAsk Your DecsUr .

Ill Broadway, New York General Selling Agents: National Lead Company, New York, Boston, Buffalo, Chicago, Cincinnati, St.

Liquid Aluminum Paint Black Board slating Blak-En-Al Leads and Zisoe Flat Brick L..

DISEASES OF THE BLOOD FORMING ORGANS 593 Many of the recent advances in our knowledge of anemic conditions have come from occupational and medicinal toxicology, dealing with such diverse conditions as chronic benzene poisoning, toxemia of amino- and nitroderivatives of aromatic compounds, lead hazards, injuries resulting from exposure to roentgen-rays and radioactive substances, and similar industrially important and medicinally used agents (Lancet).

I think the betting is distinctly on your side but I cannot see you have proved anything but that powerful ventilation makes the lead hazard fromethyl gas neg ligible or perhaps nil.

There are a number of conditions which lead to blindness in one or both eyes; without going into detail of what these conditions are, certain ones of them may be brought on and are precipitated In a more or less acute form by a good mapy varieties of external Injury or irritation.