ates ▁to ▁dangerous ▁work p laces ▁and ▁the ▁effects ▁of ▁low ▁pay ▁and ▁over c row ding . ▁and ▁he ▁is ▁considered ▁a ▁founder ▁of ▁ep ide mi ology . ▁Vill erm é ▁covered ▁a ▁wide ▁array ▁of ▁subject ▁matter ▁including : ▁children ▁in ▁the ▁work place , ▁sav ings ▁accounts , ▁as yl um ▁rooms , ▁and ▁d run ken ness ▁among ▁the ▁working ▁class . ▁The ▁work ▁was ▁unique ▁in ▁combining ▁health ▁topics ▁with ▁research ▁and ▁social ▁re forms . ▁ ▁References ▁▁ ▁Category : 1 7 8 2 ▁birth s ▁Category : 1 8 6 3 ▁death s ▁Category : Pe ople ▁from ▁Paris ▁Category : F rench ▁econom ists ▁Category : M embers ▁of ▁the ▁Ac adémie ▁des ▁sciences ▁mor ales ▁et ▁polit iques ▁Category : F rench ▁social ▁scient ists ▁Category : 1 9 th - century ▁French ▁phys icians ▁Category : F rench ▁public ▁health ▁do ctors <0x0A> </s> ▁The ▁GR ▁ 4 2 ▁is ▁a ▁long - distance ▁walking ▁route ▁of ▁the ▁Grande ▁Rand onn ée ▁network ▁in ▁France . ▁The ▁route ▁connect s ▁Beau ca ire ▁with ▁Saint - Ét ienne . ▁ ▁Al ong ▁the ▁way , ▁the ▁route ▁passes ▁through : ▁ ▁Beau ca ire ▁ ▁P uj aut ▁ ▁Or san ▁ ▁Me ys se ▁ ▁Pl ats ▁ ▁Bour g - Ar gent al ▁ ▁Saint - Ét ienne ▁ ▁References ▁ ▁Category : H ik ing ▁tra ils ▁in ▁France <0x0A> </s> ▁Net aj i ▁Nag ar ▁Day ▁College ▁is