CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



341 



8544. 



-' 



S564. 



8565. 

 S566. 



S56 . 

 8568. 

 8569. 



8570. 

 8572. 



8573. 



No. 8564. 



No. 8544. 



No. 8560. 



No. 8572. 



MICROSCOPE, Spencer No. 66. An excellent instrument for general laboratory work. A 



splendid microscope at moderate cost. 



The Body Tube is our standard, taking standard objectives and oculars. 



The Ann is the handle arm type with lever fine adjustment "C. " One revolution of the micro- 

 meter screw moves the body tube 0.5 mm. The action ceases to work when the objective 



comes in contact with slide. 

 The Stage, 103x95 mm, is completely covered with genuine hard rubber, vulcanized directly 



to the stage plate. Distance is 60 mm from optical axis to base of arm. The iris diaphragm 



is operated by a knurled ring just beneath the stage. 

 A Substage King, for attaching and focusing the Abbe condenser by means of a spiral slot, is 



supplied when the condenser is ordered or may be added at any time. 

 The Mirror is plane on one side, concave on the other, 50 mm in diameter, mounted on a 



swinging bar. 

 Furnished in hardwood cabinet, with lock an 1 key. 



No 66A 



Abbe condenser 



Nosepiece 



Objectives, equivalent 



focus, mm 16.4 



titiB 



double 

 16,4 



66C 



16,4 



66D 



66E 66F 66H 



X. A. 1.20 X. A. 1.20 X. A. 1.20 



double double double 



triple 



16,4 



16,4 



16,4 



Achromatic oculars . . lOx 

 Each $33.00 



16.4.1.8 

 oil imm. 

 6x, lOx 

 82.00 



lOx 6x, lOx 6x, lOx lOx 6x, lOx 



37.75 34.75 39.50 46.75 48.50 



MICROSCOPE. Brinell, see Hardness Testers. 



MICROSCOPE, Demonstration. With the exception of the tube, this stand is made entirely of 

 aluminum, thus making it very light. This, with the convenient handle, makes it superior to 

 all others for handing from person to person during class demonstrations. The objective is 

 accurately and easily focused by a spiral movement which is so arranged that the objective 

 may be securely fastened in any focus. The objective is always in sight, thereby being 

 easier to focus, and to exchange for another. The slide is placed upon the stage as in any 

 other microscope and there is no danger of disturbing the cover glass. Furnished with 8x 

 eyepiece and 16 mm objective 13.50 



MICROSCOPE, Dissecting, Barnes, with hardwood polished base, movable glass stage, mirror, 

 and two-lens magnifier. Fine screw and also sliding adjustment. Block is provided with 

 pocket for holding dissecting tools 2.75 



MAGNIFIER only of Xo. 8564, without holder 90 



HOLDER only of Xo. 8564. with vertical rod *4 inch in diameter 25 



MAGNIFIER' AND HOLDER of NO. S564. complete 1.15 



BLOCK only of Xo. 8564 with mirror and stage, but without magnifier and holder 1.50 



GLASS MIRRORS only of Xo. 8564 each .09 



per dozen .90 

 GLASS STAGES only of Xo. 8564 each 09 



per dozen .90 

 MICROSCOPE. Dissecting, same block as Xo. 8564, fitted with 12x Doublet Magnifier which 



gives perfect definition 3 QQ 



Note: Other size Doublets may be furnished, if desired, in place of the 12x at the same price. 

 HOLDER only of Xn. v"2 for doublet magnifiers 30 



