VIEW OF THE BOULEVARDS AT PARIS
This view was taken from one of the upper windows of the Hotel de Douvres, situated at the corner of the Rue de la Paix. The spectator is looking to the North-east. The time is the afternoon. The sun is just quitting the range of buildings adorned with columns: its faade is already in the shade, but a single shutter standing open projects far enough forward to catch a gleam of sunshine. The weather is hot and dusty, and they have just been watering the road, which has produced two broad bands of shade upon it, which unite in the foreground, because, the road being partially under repair (as is seen from the two wheelbarrows, &c. &c.), the watering machines have been compelled to cross to the other side.
By the roadside a row of cittadines and cabriolets are waiting, and a single carriage stands in the distance a long way to the right.
A whole forest of chimneys borders the horizon: for, the instrument chronicles whatever it sees, and certainly would delineate a chimney-pot or a chimney-sweeper with the same impartiality as it would the Apollo of Belvedere.
The view is taken from a considerable height, as appears easily by observing the house on the right hand; the eye being necessarily on a level with that part of the building on which the horizontal lines or courses of stone appear parallel to the margin of the picture.
From the specimen here given it is sufficiently manifest, that the whole cabinet of a Virtuoso and collector of old China might be depicted on paper in little more time than it would take him to make a written inventory describing it in the usual way. The more strange and fantastic the forms of his old teapots, the more advantage in having their pictures given instead of their descriptions.
And should a thief afterwards purloin the treasures--if the mute testimony of the picture were to be produced against him in court--it would certainly be evidence of a novel kind; but what the judge and jury might say to it, is a matter which I leave to the speculation of those who possess legal acumen.
The articles represented on this plate are numerous: but, however numerous the objects--however complicated the arrangement--the Camera depicts them all at once. It may be said to make a picture of whatever it sees. The object glass is the eye of the instrument--the sensitive paper may be compared to the retina. And, the eye should not have too large a pupil: that is to say, the glass should be diminished by placing a screen or diaphragm before it, having a small circular hole, through which alone the rays of light may pass. When the eye of the instrument is made to look at the objects through this contracted aperture, the resulting image is much more sharp and correct. But it takes a longer time to impress itself upon the paper, because, in proportion as the aperture is contracted, fewer rays enter the instrument from the surrounding objects, and consequently fewer fall upon each part of the paper.
By the roadside a row of cittadines and cabriolets are waiting, and a single carriage stands in the distance a long way to the right.
A whole forest of chimneys borders the horizon: for, the instrument chronicles whatever it sees, and certainly would delineate a chimney-pot or a chimney-sweeper with the same impartiality as it would the Apollo of Belvedere.
The view is taken from a considerable height, as appears easily by observing the house on the right hand; the eye being necessarily on a level with that part of the building on which the horizontal lines or courses of stone appear parallel to the margin of the picture.
From the specimen here given it is sufficiently manifest, that the whole cabinet of a Virtuoso and collector of old China might be depicted on paper in little more time than it would take him to make a written inventory describing it in the usual way. The more strange and fantastic the forms of his old teapots, the more advantage in having their pictures given instead of their descriptions.
And should a thief afterwards purloin the treasures--if the mute testimony of the picture were to be produced against him in court--it would certainly be evidence of a novel kind; but what the judge and jury might say to it, is a matter which I leave to the speculation of those who possess legal acumen.
The articles represented on this plate are numerous: but, however numerous the objects--however complicated the arrangement--the Camera depicts them all at once. It may be said to make a picture of whatever it sees. The object glass is the eye of the instrument--the sensitive paper may be compared to the retina. And, the eye should not have too large a pupil: that is to say, the glass should be diminished by placing a screen or diaphragm before it, having a small circular hole, through which alone the rays of light may pass. When the eye of the instrument is made to look at the objects through this contracted aperture, the resulting image is much more sharp and correct. But it takes a longer time to impress itself upon the paper, because, in proportion as the aperture is contracted, fewer rays enter the instrument from the surrounding objects, and consequently fewer fall upon each part of the paper.
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