▁ ▁Bi ograph ies ▁of ▁Mack en zie ▁were ▁published ▁by ▁H . R . ▁Ha weis ▁( 1 8 9 3 ) ▁and ▁R . ▁Scott ▁Stevens on ▁( 1 9 4 6 ). ▁ ▁Writ ings ▁▁▁ ▁The ▁Use ▁of ▁the ▁L ary ng os cope ▁in ▁D ise ases ▁of ▁the ▁Th ro at . ▁Philadelphia : ▁L inds ay ▁& ▁Bla k ist on , ▁ 1 8 6 5 . ▁ ▁Ho ars eness , ▁L oss ▁of ▁Vo ice , ▁and ▁Str id ul ous ▁Bre ath ing ▁in ▁Rel ation ▁to ▁N er vo - Mus cular ▁A ffect ations ▁of ▁the ▁L ary nx . ▁London : ▁Church ill , ▁ 1 8 6 8 . ▁ ▁Ess ays ▁on ▁G row th s ▁in ▁the ▁L ary nx . ▁Philadelphia : ▁L inds ay ▁& ▁Bla k ist on , ▁ 1 8 7 1 . ▁ ▁The ▁Ph arm ac op oe ia ▁of ▁the ▁Hospital ▁for ▁D ise ases ▁of ▁the ▁Th ro at . ▁London : ▁Church ill , ▁ 1 8 7 2 . ▁ ▁Di ph ther ia : ▁Its ▁Nature ▁and ▁Tre at ment , ▁Vari eties ▁and ▁Local ▁Express ions . ▁Philadelphia : ▁L inds ay ▁& ▁Bla k ist on , ▁ 1 8 7 9 . ▁ ▁D ise ases ▁of ▁the ▁Ph ary nx , ▁L ary nx , ▁and ▁Tra che a . ▁New ▁York : ▁W . ▁Wood , ▁ 1 8