“‘This siren was invented two centuries ago by a certain learned physician named Zehbek and it was so to say perfected in the middle of the last century, by a certain Cognar-de-la-Tour. BTG XLI
“‘This siren was invented two centuries ago by a certain learned physician named Zehbek and it was so to say perfected in the middle of the last century, by a certain Cognar-de-la-Tour. BTG XLI