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678 THE PHOTOGRAPHIC HEWS. and use the block so obtained for printing at a type press where only a few copies are wanted; but where large numbers are required, I electrotype the same in the ordinary way. I prefer to use diffused daylight or sunlight through ground glass or tissue paper to produce the relief, as in that case the light in the parts that represent the whites creeps around the lines, thus partially obliterating them in that part, and leaving them strongest only in the parts printing dark. I sometimes adopt another method. I take a negative of the network by trans mitted light, and copy this together with the negative to be reproduced, thus producing a positive with the lines already thereon, from which I proceed to make a relief and blocks, as stated.” The accompanying block is one which Mr. Woodbury made at the time he took out his patent, and we have selected this as possessing an open grain suited for machine printing. A very much finer block is in our hands, and we hope to place impressions from it before our readers before long; but, to do justice to the block, it will be necessary to print it separately. It may be noted that the nature of the graining medium selected serves to determine whether the block can be readily printed on a rough machine, or whether careful hand-printing will be required. An open grain for rough printing can always be obtained by using a coarse net work. It is interesting to note that photo-block printing even for ordinary newspaper work is not altogether a thing of the present time. Excellent blocks by Mr. Leggo appeared in a Canadian newspaper in 1873, and a portrait of Nordens Kiold appeared in Le Monde Illustre in 1877, this latter block having been made by Carloman, of Stockholm. At the present time a series of photo-block portraits are appearing in the St. Stephen's Review, under the heading of the " St. Stephen’s Portraits.” This series is interesting as affording the first example of the regular use of photo- blocks from half-tone negatives, for the reproduction of portraits in a general London newspaper. “HOW THE CH11TYWEE WAS TAKEN.” INSTANTANEOUS PEOTOGRAPHY FROM a Sailing Boat. BY A. 3. WEST. It was a rough and stormy day on the 11th of August, when I got on board our boat for the purpose of taking some instantaneous photographs of the Osborne Bay Regatta; the weather looked very threatening, and now and then could be heard a peal of distant thunder. Our old fisherman Williams, who is captain, mate, and crew combined, predicted a squally voyage, but as I was very desirous of getting some of the yachts that would be racing, I told him to up sail and away as quickly as possible. We started with a double-reefed mainsail, and soon passed along the coast of Haslar ; after we had rounded Gillkicker Point, we had what is called a dead muzzier. However, by hugging the shore of Stokes Bay, to avoid the west tide, which was running very strong, we managed to get ahead very fairly. It was then about 10 a.m., and presently Williams called my attention to some yachts which had just started, and which were making straight for us. I at once prepared for action, rigged up the camera, and got the focus all complete ready to capture the first vessel that came within range. I had not to wait long before a yacht came scudding along, her lee gunwale under water, and every