14 THE STRUCTURE OF 



the fertility of his resources and the ingenuity of 

 his inventions in connection with the Microscope. 

 It is to him that we are indebted for a Microscope 

 that enables us to see objects in a natural manner, 

 namely, with both eyes at once. Hitherto the 

 ordinary single-tubed Microscope reduced the ob- 

 server to the condition of a Cyclops. Although 

 gifted with a pair of eyes he found it impossible to 

 avail himself of this plurality of organs. He was 

 condemned by the very nature of his Microscope 

 to peer perpetually with a single eye through its 

 solitary tube ; but thanks to Mr. Wenham all this 

 is changed. We have now the satisfaction of using 

 a double-tubed Microscope that not only gives em- 

 ployment to both eyes at once, but presents us with 

 effects unknown and unattainable by the ordinary 

 instrument. We no longer gaze at a flat surface, 

 but a stereoscopic image stands out before us with 

 a boldness and solidity perfectly marvellous to those 

 who have only been accustomed to the ordinary 

 single-tubed Microscope. 



" No one," says a writer in ' The Popular Science 

 Review/ " can fail to be struck with the beautiful 

 appearance of objects viewed under the Binocular 

 Microscope. Its chief application is to such objects 

 as require low powers, and can be seen by reflected 

 light, when the wonderful relief and solidity of the 

 bodies under observation astonish and delight even 

 the adept. Foraminifera, always beautiful, have 

 their beauties increased tenfold ; vegetable struc- 

 tures, pollen, and a thousand other things, are seen 

 in their true lights, and even diatoms, we may pre- 

 dict, will receive elucidation, as to the vexed ques- 

 tions of the convexity or concavity of their infinitely 

 minute markings. The importance of the Binocular 

 principle is especially apparent when applied to 

 anatomical investigation. Prepared Microscopic 



