Given for new subscriptions amounting to $2.50. This little microscope is very useful to take on excursions for examining flowers, insects, etc. Can easily be carried in the pocket. Price $1.50.
AN EXTRAORDINARY MICROSCOPE OFFER.
QUEEN’S UNIVERSAL HOUSEHOLD MICROSCOPE, NO. 3064.
Given for new subscriptions amounting to $15.00 and 50 cents cash additional; or given for new subscriptions amounting to $10.00 and $3.50 cash additional; or given for new subscriptions amounting to $7.00 and $5.00 cash additional.
This complete and powerful instrument has the essential parts and general design of a first-class modern Microscope. It is simple in construction and of convenient design, and is well adapted for teachers and students, as well as for family use, affording amusement and instruction to young and old.
The stand is eight inches in height, with hinged joint, allowing it to be inclined to any angle for convenience of observation. The base is of cast-iron, handsomely japanned, the compound body of finely lacquered brass, with draw-tube, for increasing the power of the object-glasses. The stage is of ample size, and is provided with spring clips for holding the object whilst under observation; beneath is a concave mirror, conveniently jointed, for the illumination of all transparent objects.
One great advantage consists of the rack and pinion adjustment for focus. It also has a condensing lens for giving a better illumination to opaque objects. The dividing Achromatic object-glass gives a range of powers from 75 to 290 diameters, (not times, which is area, remember), with an improved quality of definition. Two prepared objects, two glass slips and brass forceps accompany each instrument, and the whole is packed in a neat polished mahogany case.
N. B. Any one desiring this Microscope for immediate use, or as a present, can forward $12.00 and receive it, and afterwards make up a Premium Club for it, as above offered, deducting the proper amount from the $12.00. Price $12.00. Receiver to pay express charges.
THE MICROGRAPH.