being written by a leading authority.

ho nans of the person The following naasd corporations were dissolved and osaaed to be subsidiaries of the registranti Anaoonda Lead Produets Company Butte Electric Railway Company Andes Exploration Company (Bel.)

The following na&ed oorporatlons were dissolved and eeased to be subsidiaries of the registrantt Anaoonda Lead Produets Coupany Butt* Electric Hailway Company Andes Exploration Company (Bel.)

Some dusts '\are poisonous (lead, mercury, arsenic, manganese, and cadmium) and some act as irritants (silica, steel, iron, and granite).

The loss of this substance may lead to attacks of cramps, unless the salts are replaced in the drinking water.

Adhesive Age Red Book leads.

A considerable number of such cases were directed to the Cllnle, particu larly cases of lead poisoning, and contact was made with the industries from which they came.

Johnson, Bowman & Knox Serial Number 178,352 Filed December 6, 1937 For:Method of Producing White Lead Dear Mr.

This aethod of procedure should also wlnlalss unasceseasy travels ft tb* end of this phase of the survey w* will complete a final report contain ing our recommendation* for developing and promoting the uee of lead In the coostraotlon industry based oa our investigations undertaken la the previous phtee.

--d to lead to the discovery of admissible evidence, calls "or irrelevant information, is unspecific and v.acue, and is r.ot a properly framed request under the Rules.

Johnson et si: Method of Producing ffhlte Filed Dec. 6, 1937 : Lead.

The loss of this substance may lead to attacks of cramps, unless the salts are replaced in the drinking water.

A. ; Selvig for achamical analysis and ; | | the 1 PARTIAL ANALYSIS \ Per cont ---- 2 ----- 1.6 -- Lead Fb510-- tt 510-- " 6.3 Bilica Aluminum oxide c= eee 6.3 70203- 6.3 Al 0 Ferric Oxide Calcium oxide 70203- -<|--- 13.3 analyses 2 Silica 3102- - - A1203- Aluminum oxide A1203- -i - --= Ferric oxide F0203- - -; ---- Calcium oxide oe = enete 40.8 5.9 31.6 13.3 . 3 silica ar Aluminum oxide Al e- 0 Ferrio oride --e-- - =~ =< Calcium oxide C^o- - o-=--~- 6.0 29.2 12.0 | -2- The concluding statement of Mr.

being written by a leading authority.

My only suggeswould be t h e p o s s ib le in c lu s io n o f a b r i e f summary a t th e end o r a t th e s ta r t alone such p o ssible lin e s a s- importairb p o in ts . in t h i s volume are s- by th e in v e s tig a tio n s - - The development o f chem ical and sp ectro g rap h ic methods V -- ---- f o r th e d e te rm in a tio n o f sm all q u a n t i t i e s o f le a d i n f- -- -------b io lo g ic a l m a te r ia l* , E stablishm ent of existence^and magnitude of normal lead -- in b o th p r im itiv e and c i v i l i z e d man^togolhw r wit h - seme ' - in d ie a tin n of -t h e - so u rc e s -o f t h i s l e a d , jfSS/P The b e h a v o ir o f t e t r a e t h y l le a d i n th e human organism } aJ>9 M, tre a tm e n t o f le a d in to x ic a tio n produced by c o n c e n tra te d tetraethyl. lead