d probably for the arate; the outside part supports the tube of the large first time also.” companied by Dr. 8. P. Langley, the secretary of the camera, while the inside part supportsthelens. The plate Institution, and several others, They had an immense Mr. Nevil Maskelyne also introduced a new… … The 40-foot Photo-Heliograph on its Scaffold. In another engraving will the foreman was employed be seen a nearer view of the by the firm, and his invention portable transit house. This was only a part of the service house has been all: over the which he owed to his employ- world with different…
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