52 



"full (if m'l'iiis."" Some (if till' uiicrdlH's -aw ]p;itlni,Lr(-iiii-. t-iiinhlc of ])Vo- 

 (luciiiy ill licaltli ;iii(l diseaj^t'. The inlialatioii nl infected dust ju-dduces 

 Couiosis.' 



There is urueut ueed for an iustitutiou to study tlie Dust I'mbleni. of 

 ("ouiolciry aud Couiosis, not only in niakiug original investigation, imt in 

 collecting the literature and in gathering and distril)uting information. 



In a new science any one can assist, even simple ohservations are 

 useful. 



For n tabic on 'Plio Involution of Dust seo I'loooeduigs for 190<). pat-'c 47 



