[25] Of Vespertilian science generally, compare 'Eagles' Nest,' pp. 25 and 179. [26] The mathematical term is 'rhomb.' [27] [Greek: hes to sperma artopoieitai.] [28] [Greek: epimekes echousa to kephalion.] Dioscorides makes no effort to distinguish species, but gives the different names as if merely used in different places. [29] It is also used sometimes of the garden poppy, says Dioscorides, "[Greek: dia to rhein ex autes ton opon]"--"because the sap, opium, flows from it." [30] See all the passages quoted by Liddell. [31] I find this chapter rather tiresome on re-reading it myself, and cancel some farther criticism of the imitation of this passage by Virgil, one of the few pieces of the AEneid which are purely and vulgarly imitative, rendered also false as well as weak by the introducing sentence, "Volvitur Euryalus leto," after which the simile of the drooping flower is absurd. Of criticism, the chief use of which is to warn all sensible men from such business, the following abstract of Diderot's notes on the passage, given in the 'Saturday Review' for April 29th, 1871, is worth preserving. (Was the French critic really not aware that Homer _had_ written the lines his own way?) "Diderot illustrates his theory of poetical hieroglyphs by no quotations, but we can show the manner of his minute and sometimes fanciful criticism by repeating his analysis of the passage of Virgil wherein the death of Euryalus is described:-- 'Pulchrosque per artus It cruor, inque humeros cervix collapsa recumbit; Purpureus veluti cum flos succisus aratro Languescit moriens; lassove papavera collo Demisere caput, pluvia cum forte gravantur.'