Book-shelves, and cupboards with glass doors, containing geological and other specimens, occupied much of the wall space; while in the centre of the floor stood a large writing-table, covered with a miscellaneous collection of pens, ink-pots, bundles of papers, and a polished mahogany box which could easily be recognized as a microscope-case.

[microscope components] objective lens, eyepiece, barrel, platform, focusing knob; slide, slide glass, cover glass, counting chamber; illuminator, light source, polarizer, [component parts of telescopes] reticle, cross-hairs.

Under the microscope cartilage is seen to consist of a matrix, or base, in which nucleated cells abound, either singly or in groups.

But the skill of the microscope makers of the eighteenth century soon reached its limit.

Then he replaced one of the objectives by a spectroscopic attachment, and having placed the little lamp close to the microscope mirror, adjusted the spectroscope.

"I'm watching you, sir," replied the officer, with a chuckle; and he did watch, with close attention and great interest, while Thorndyke laid the glass slips on the microscope stage and proceeded to focus.

If it's a new bug, or a microscope insect we put it into the hands of a man who knows just what high scientific authority to apply to; if it's the middle name of your next door neighbor we'll give it to you from his baptismal record.