_Huggins and Muggins_ (Vol. viii., p. 341.).--In the edition of Mallet's _Northern Antiquities_, edited by J. A. Blackwell, Esq., and published by Bohn (_Antiquarian Library_, 1847), the following conjectural etymology of the words Huggins and Muggins is given by the editor in a note on the word _Muninn_, in the glossary to the Prose Edda: "We cannot refrain for once from noticing the curious coincidence between the names of Odin's ravens, Hugin and Munin--Mind and Memory--and those of two personages who figure so often in our comic literature as Messrs. Huggins and Muggins. _Huggins_, like _Hugh_, appears to have the same root as _Hugin_, viz. _hugr_, mind, spirit; and as Mr. Muggins is as invariably associated with Mr. Huggins, as one of Odin's ravens was with the other (as mind is with memory), the name may originally have been written _Munnins_, and _nn_ changed into _gg_ for the sake of euphony. Should this _conjecture_, for it is nothing else, be well founded, one of the most poetical ideas in the whole range of mythology would, in this plodding, practical, spilling-jenny age of ours, have thus undergone a most singular metamorphosis." JNO. N. RADCLIFFE. Dewsbury. _Camera Lucida_ (Vol. viii., p. 271.).--With my camera lucida I received a printed sheet of instructions, from which the following extract is made, in answer to CARET: "Those who cannot sketch comfortably, without perfect distinctness of both the pencil and object, must observe, that the _stem_ should be drawn out to the mark D, for all distant objects, and to the numbers 2, 3, 4, 5, &c. for objects that are at the distances of only 2, 3, 4, or 5 feet respectively, the stem being duly inclined according to a mark placed at the bottom; but, after a little practice, such exactness is wholly unnecessary. The farther the prism is removed from the paper, that is, the longer the stem is drawn out, the larger the objects will be represented in the drawing, and accordingly the less extensive the view. "The nearer the prism is to the paper, the smaller will be the objects, and the more extensive the view comprised on the same piece of paper. "If the drawing be two feet from the prism, and the paper only one foot, the copy will be half the size of the original. If the drawing be at one foot, and the paper three feet distant, the copy will be three times as large as the original: and so for all other distances." T. B. JOHNSTON. Edinburgh. _"When Orpheus went down"_ (Vol. viii., pp. 196. 281.).--This seems to be rightly attributed to Dr. Lisle. See Dodsley's _Collection of Poems_, vol. vi. p. 166. (1758), where it is stated to have been imitated from the Spanish, and set to music by Dr. Hayes. It is not quite correctly given in "N. & Q." J. KELWAY.