Note 491 — LETTER XXX. (continued 2)
Reading edition
As the larvæ of Ephemeræ usually live in the submerged part of the banks of rivers, perhaps they may be regarded as following the economy of subterranean terrestrial larvæ.
Reading edition
As the larvæ of Ephemeræ usually live in the submerged part of the banks of rivers, perhaps they may be regarded as following the economy of subterranean terrestrial larvæ.