. The War Cry . dark-room witli gas, thenexposure to the (lame of a good parnllln Lamp willhave to sulHce. Expo.*fe the face of the prlnting-naiiie BOiiie ICIn. or isln. away fium the light. Insuch a manner that the whole surface of the plate Isequally Illuminated. An exposure of ten Heconds togas, .and perhaps double that time with nn oil lampas nn iUumlnant, will be found sufllclent for a neg-ative of about correct denaity and a gelatine plate ofovarugu nipldlty. Fill directions as Ifn^^-ii, ofexposure will be found supplied with the nlatea, andthese should be strictly rnllowed, as iiio

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. The War Cry . dark-room witli gas, thenexposure to the (lame of a good parnllln Lamp willhave to sulHce. Expo.*fe the face of the prlnting-naiiie BOiiie ICIn. or isln. away fium the light. Insuch a manner that the whole surface of the plate Isequally Illuminated. An exposure of ten Heconds togas, .and perhaps double that time with nn oil lampas nn iUumlnant, will be found sufllclent for a neg-ative of about correct denaity and a gelatine plate ofovarugu nipldlty. Fill directions as Ifn^^-ii, ofexposure will be found supplied with the nlatea, andthese should be strictly rnllowed, as iiio respectivemanufacturers alone know tbo of their ownemulsion. In the case of ,a thin, weak nt^;ratlve. In.,crease the ejrpopuro. and hold tho printing-framesome 3tt. or lit. away from Iho llghl. A very densenegative must, of course, be held closer than tin-normal distance from the light. Correct exponuro very important point, and can only be .irrlvod atoCter repeated BsperlmnntB. (To be continued.). -^ -Taw .gWg^?^iP!ta.^1^

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsalvati, bookyear1904