. Quarterly journal of microscopical science . illuminationlittle, if at all inferior, to that produced by Gillets con-densei, or the one I generally use myself, which was madefor me by Smith and Beck, The first object I tried it withwas Pleuroaignia anr/ulatum (the Navicula angulata ofQuekett), which after a little trouble I was enabled to exhibitmost beautifully in dots ; and two experienced friends, and Mr. Gregory, in common with myself, were muchstruck, not only with the very beautiful manner in which theobject was shown, but also with the rapidity with whichthe adjustment coul


. Quarterly journal of microscopical science . illuminationlittle, if at all inferior, to that produced by Gillets con-densei, or the one I generally use myself, which was madefor me by Smith and Beck, The first object I tried it withwas Pleuroaignia anr/ulatum (the Navicula angulata ofQuekett), which after a little trouble I was enabled to exhibitmost beautifully in dots ; and two experienced friends, and Mr. Gregory, in common with myself, were muchstruck, not only with the very beautiful manner in which theobject was shown, but also with the rapidity with whichthe adjustment could be effected. An experienced artist, Mr. C. J. Fleming, has carefullysketched, from my microscope, the actual appearance of theobjects shown with this peculiar illumination, which at onceplaces in the hands of every student a ready and very cheapmethod of exploring a field abounding with objects of themost wonderful forms, and the internal structures of which,as organized living beings, cannot fail amply to repay themost diliijent


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Keywords: ., bookcentury1800, bookdecade1850, bookpublisheroxfor, bookyear1853