. Bulletin - United States National Museum. ney having an expanded air chamber at the lamp was the beginning of a line of lamps reaching the highestilluminating results from petroleum (pi. 41, fig. 5). ETHNOGRAPHY OF THE LAMP Under this head are discussed lamps which different races haveadapted to their needs and which show racial characteristics in lamps belong in the noninventive period, and therefore pre-cede developmentally the lamp of Argand. It is obviously impossibleto monograph the lamps of each country treated below. An attemptwill be made only to present the chara
. Bulletin - United States National Museum. ney having an expanded air chamber at the lamp was the beginning of a line of lamps reaching the highestilluminating results from petroleum (pi. 41, fig. 5). ETHNOGRAPHY OF THE LAMP Under this head are discussed lamps which different races haveadapted to their needs and which show racial characteristics in lamps belong in the noninventive period, and therefore pre-cede developmentally the lamp of Argand. It is obviously impossibleto monograph the lamps of each country treated below. An attemptwill be made only to present the characteristic forms coming tonotice. ENGLAND Extemporaneous or local lamps are interesting as devices of thefolk, although they have no bearing on the history of has many of these which their makers fashioned as anexpression of humor or individuality. Thus a block of chalk hollowedout and squared forms a lamp such as it is, or an excavated turnipis made into a temporary oil holder. U. S. NATIONAL MUSEUM 5ULLETIN 139 PL. 40. U. S. NATIONAL MUSEUM BULLETIN 139 PL. 41 ^^^^^^^^^ ^KiMlIIWWE 1 -111 s^=r
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
