The particular mixture of caloric sources In human milk leads to colonization of the Intestine by a predictable mlcroblologlc flora which miy be adapted to specific human Infant needs both In a nutritional and Immunologic sense.

One can use this bioauxotrophic strain in four mutation systems to test .mitagenic agents: In the three back mutation systems gal'*', arg+, and nad*, and In the mTR system, where forward mutation leads to resistance to 5-methyl-DLtryptophane13^.

Pump to Dilution Tank B1,B2,B5,B6 Manheads B1,B2,B5,B6 LL Hiqh Lead Flanqe B1,B2,B5,B6 Temp.

LIA15126 Lead Industries Association, Inc. ~ ttt Itetf^on A>ow< N*w Ytrt, N. r. 10O1T T*t*pho*: (*1B I7M0M November 19. 1973 SUBJECTi ELECTRIC VEHICLE STUDIES TO THE MEMBERS Or THE LEAD INDUSTRIES ASSOCIATION, IK.i 3 The Electric Vehicle Council, of which your association is e ember, has juat produced two atudlea on electric vehiclea that My be of intereat to you or your colleagues. j We are attaching summaries of each atody for 2 your convenience.

Although brake linings contain silica and lead and the effects of overexposure are correctly stated, we do not believe that at the present time there is any evidence that would indicate that silica and lead are common hazards in brake relining operations.

Va.. and Louisville, Ky. who have now learned that they have been exposed to chrome pigments (lead chromate, lead-molybdenum and zinc chromate pigments) and that such exposure in a Japanese study showed a lung cancer rate more than 26 times higher than the national average?

German pharmaceuticals continue steady progress Germany's pharmaceutical industry con solidated its leading position last year in spite of increasing difficulties.

On balance, however, the literature suggests that in utero exposure to VC does not lead to developmental toxicity in experimental animals.

On balance, however, the literature suggests that in utero exposure to VC does not lead to developmental toxicity in experimental animals.

On balance, however, the literature suggests that in utero exposure to VC does not lead to developmental toxicity in experimental animals.

Page 20 August 23, 1971 FOOD CHEM ICAl NEWS HEALTH SIGNIFICANCE OF PCB CONTAMINATION BECOMES ISSUE Ralph Nader and Food and Drugs Commissioner Charles Edwards disagreed sharply last week over the public health significance of chicken and egg contamination by polychlorinated biphenyls, as both FDA and the Agriculture Department continued the monitoring and holding of poultry and eggs involved in the contamination.

The proportional mortality table does not lead to the same conclusion.

"However, changes in the prices charged by ASARCO would lead to changes in the domestic demand satisfied by foreign suppliers.

., Lead Operator Personnel Exposure, ppm VCM Week Of $ Hi, Week Of ci!

This could lead us to additional Stan dard Drawings to cover tbs alternative. , In sinnary, many insulation questions remain to be ansvered.