Sentence:  Wonderful as they are, they have their counterparts in the works of man, as for instance: the camera, or artificial eye; the phonograph, or, artificial ear; the delicate chemical apparatus, or artificial taster and <WSD>smeller</WSD>; the telegraph, or artificial nerves. 
Meaning of the word marked with <WSD> tags:  Someone or something that smells, that detects scent