Frederick William Beechey,
Proceedings of the expedition to explore the northern coast of Africa…
(1828)
“ For many years past (he continues) no silphium has been found in the Cyrenaica; the owners of the land having thought it more profitable to turn their sheep and cattle into the pasture lands (where the silphium, as we have before mentioned, is produced) than to preserve the plant as formerly. One only stem of it (it is Pliny who speaks) has been found in my recollection, which was sent to the Emperor Nero. ”
