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The Optical Magic Lantern Journal and Photographic Enlarger. 51
the first instance. One of Messrs. Carpenter and Westey’s slide-painters claimed to have invented dissolving views, but it doesnot appear that his claim was much recognised by those who perhaps knew better. In inquiring into this matter some years ago, the best information I could get, which was but of an incomplete character, was to the effect that they were first brought to London by some Italian. The method of their production was a sccrct for some time, and greatiy puzzled the late Dr. W. B. Carpenter.
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Shadowgraphs.
By Caas. Ei. Corrreny.
Ir is sometimes as well to write for the benefit of juveniles, but I find that in many cases the grown up folks enjoy the matter written for the former, just as much as do the youngsters, many grown people enjoy a game or two with children, and inany of us who are anxious to see a pantomime adinit that we went to See so and so, “merely to take the children.”
Go to any juvenile lantern entertainment and watch the adults who may be present, enjoy seeing such slides, as in our more sober moments we call rediculous. Why I have known a man discourse upon scientific problems on a Monday, having a fine time of it on a Tuesday evening at a youngsters’ entertainment. Those who therefore think it absurd to see the following sketches, can take it that it is meant for the benefit of children.
At most domestic lantern shows, there is a time when the screen is devoid of picture, although the light may be on; and the representing upon the screen by the proverbial small boy of some representation by means of his hands, causes no small amount of amusement. Now, with veryjlittle practice, some very good representations can be made by what is termed shadowgraphy. I need hardly say that the object, the shadow of which is to be cast upon the screen, must be placed between the lantern and the screen in the rays of light, and one trial will show that the size of the shadow is governed by its relative distance to or from the light.
I have made four sketches showing how in a simple manner various shadows may be cast. Take the first instance viz.: a parrot standing
Poe uponatwig. The right hand must be closed and the fore finger allowed to rest upon the tip of the thumb but slightly projecting over it; this hand is held upright, whilst the left is placed
angles, the forefinger being
immediately below at right |
extended whilst the other fiugers are allowed to droop, to form the tail of the bird, as shown in Fie. 1.
No. 2 forms the head of an Indian chief, the particulars need not be described in detail, as I think the sketch is sufficient to explain them. The chicf difficulty is to place the knuckles of the right hand so that the nose and chin will be sufficiently defined.
A very easy head to show is that depicted at Fig. 3, viz.—the head of a miner, but care must be taken that the first and second fingers of the right hand forms the nose in apronounced manner.
The next (Fig. 4) is a somewhat difficult head to make, but if the particulars are mastered we have a good representation of the head of a policeman or soldier as shown in Fig. 4.
Aswan and cow’s head with horns, are not by any means difficult to make, and should I hear that tho above has been of interest to the juvenile readers or perhaps the juvenilesof readers, I may at some no distant time, give
Fig. 2.
Fig. 3.
Fig. 4. them some more material to work upon.
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Lantern Slide Methods.* By C. Weep Barnes.
THERE is a solid substratum of common senso in the prevailing favour with which lanternslides are received. They have become an almost essential requisite in these days to any lecturer whose words admit of being made more impressive by adding the evidence of sight to that of hearing, Strangely enough, people will believe their eyes who doubt their ears. This fact being conceded, it remains for me to give some faint idea of the great stature to which this work has grown, what it can be made to mean, and a little—only a little—about how it is done. The old idea of the magic-lantern impresses those who give little thought to camera work with an almost absolute conviction of its being a kind of trick, really sleight-ofhand or magic.
And when they are told that lantern-slide work is a well-defined and not over and above
* Extract from the Hoboken Camera Club.