THE CAMERA. 



21 



without ray screen or filter, and the de- 

 veloper used was mitol hydro. The de- 

 velopment was carried just far enough 

 to bring out the clouds, no attempt being 

 made to get any detail in the foreground. 

 The secret of my success was in get- 

 ting up in the tower where I could 

 shield my lens from the direct rays of 

 the sun. 



A HOME-MADE PHOTO-MUROGRAPHIO 

 OUTFIT. 



Herewith is an illustration of a com- 

 paratively inexpensive photo-micro- 



mination as may be desired. T's in the 

 rubber tube cany gas to the side jets, 

 for the illumination of opaque objects. 

 For delicate high power work, a com- 

 pound microscope, shown at the left 

 may readily be substituted for the pro- 

 jection microscope. The entire appar- 

 atus is mounted on a plain board with 

 firm legs tipped by pieces of rubber tub- 

 ing to prevent jarring or vibration. Un- 

 der this board is an iron rod, with a 

 wheel at the end, shown under the rear 

 of the camera, by which the focussing 

 is done by delicately sliding the object 



A PHOTO-MICROGRAPHIC OUTFIT MADE OF PROJECTION MICROSCOPE AND 



PREMO 6 l / 2 x8*A LONG FOCUS CAMERA. 



graphic outfit in the editor's laboratory. 

 Beginning at the right, as shown in the 

 illustration, is a Premo camera of four 

 feet extension front and back focus, 

 plate 6]/ 2 x 8y 2 inches. In place of the 

 ground glass of the regular camera, a 

 photo-micro glass with clear center was 

 obtained. A wooden tube is fitted at 

 the front in place of regular lens and 

 lens board. At the external end of this 

 tube are disks with perforations varying 

 in size, some with the society screw to 

 take a nose piece for three projection 

 objectives. Other discs are fitted to 

 the regular camera shutters, or lenses 

 without shutters. At the left of this 

 is arranged a projection microscope, 

 modified from a criterion optical projec- 

 tion lantern. An acetylene generator 

 supplies gas for the double jet which 

 furnished reflected light or direct illu- 



while the operator looks at the image on 

 the ground glass. 



Thus, at comparatively little expense, 

 by the aid of a liberal supply of in- 

 genuity, was produced a 6 l / 2 x 8j/ 2 cam- 

 era in which can easily be photographed 

 objects from the size of diatoms and in- 

 sect scales to entire flowers and insects. 



The work was done by the Bausch & 

 Lomb Optical Company, the Rochester 

 Optical Company, J. B. Colt & Com- 

 pany, and local carpenters and machin- 

 ists. 



BIRD HAUNTS. 



BY EDMUND J. SAWYER, SCHENECTADY, N.Y. 



Considering the herons, gulls, eagles, 

 snow-buntings, and host of others, and 

 myriad birds of the tropics, it may be 

 said no place is too wet or too dry, too- 



