Box 9
Contains 552 Results:
[Two sets of the words “set – the cards”], G2, American Optical Company, Javal L 11, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “are combined to obtain binocular vision”], G3, American Optical Company, Javal L 10, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “Never begin with a new chart before mastering the preceding”], G4, American Optical Company, Javal L 9, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “After the chart can be well read at the easiest distance, practise reading it at different distances by”], G5, American Optical Company, Javal L 8, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “varying the distance in the stereoscope. The Charts in series G should always be preceded by the series F which are more artfully designed”], G6, American Optical Company, Javal L 7, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “The signs and marks printed in connection with certain letters, for instance the dots above and below the I should be seen simultaneously. The desire to master the cards often produces a tendency to simulate which should be carefully guarded”], G7, American Optical Company, Javal L 6, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “against. It has happened that a child in order to please its parents and the oculist pretended to see all the letters and the controlling markings in their proper places, when really he did not. In addition to this there exists another source of error owing to neutralization. The neutralization may be partial for instance on F3 the patient may well see the three letters one above”], G8, American Optical Company, Javal L 5, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two sets of the words “the other; but the letter o which the left eye should see is blurred. The condition is at once signalized by the absence of the vertical arm of the cross which must be made to reappear. In the preceding chart it is not only necessary that the first four lines be read without a break but it is necessary that the text seen at the right and left of the upper black square itself furnishes the proof that it is seen by the left eye and that the text placed under the square is seen by the right eye only. Furthermore it is necessary that the upper square appears transparent and on the same vertical line with the following square seen with the right eye only. When this last result cannot be obtained of if the beavy black vertical lines in the present chart do not appear parallel it is because there is a rotation of the eyes on their axes.”], G9, American Optical Company, Javal L 4, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two circles with an arrow pointing at each one, one from the top and one from the bottom], H 2 ½ cm., American Optical Company, Javal I, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.
[Two circles with an arrow pointing at each one, one from the top and one from the bottom], H 3 cm., American Optical Company, Javal I, no date.
This series is compiled of collections of stereoscope cards, each with its own purpose, such as function or entertainment. These collections come in boxes specific to the cards.