Orazio Silvestri
Orazio Silvestri ( 7 February 1835 – 17 August 1890 ) was an Italian geologist and volcanologist . 
<triplet> Orazio Silvestri <subj> 7 February 1835 <obj> date of birth <subj> 17 August 1890 <obj> date of death <triplet> volcanologist <subj> geologist <obj> subclass of