| No. 152. | Illuminating Lens on stand, 100 mm diameter | $12.— |
| No. 153. | Illuminating Lens on stand, 60 mm diameter | $8.— |
| No. 154. | Glass slides, hollow, per doz | $—.75 |
| No. 155. | Glass slides, English form 3×1", of plate-glass with
polished edges, per gross | $1.— |
| No. 156. | Glass slides, with well, for moist chambers | $—.40 |
| No. 157. | Cover-glasses, squares, 15×15 mm, per 100 | $—.60 |
| No. 158. | Cover-glasses, squares, 20×20 mm, per 100 | $—.85 |
| No. 159. | Cover-glasses, circles, 15 mm diameter, per 100 | $—.85 |
| No. 160. | Cover-glasses, circles, 20 mm diameter, per 100 | $1.— |
| No. 161. | Turn-table, for ringing, with adjustable slide clips | $4.— |
| No. 162. | Thickened Cedar Oil for oil-immersion lenses, 1 oz | $—.40 |
| No. 163. | Object Marker. This is designed to indicate the exact
portion of an object which has been seen in the field
of the microscope. After finding the required field,
the objective of the microscope is unscrewed and the
marker is screwed into the tube in its place. By then
moving the tube so that the marker comes in contact
with the object that portion of the object which occupied
the optical axis of the microscope is indicated | $1.25 |
| No. 164. | Object Marker with diamond point, by means of which
the object can be marked by drawing a circle | $4.— |
| No. 165. | Demonstration Ocular of Kuznitzky (Cf. Zeitschr. f.
wissensch. Mikroskopie, XIII, 1896).—Indicates any
particular portion of the image to which it is desired
to draw particular attention.
A small lever at the top of the ocular moves an
indicator just above the diaphragm of the ocular to
any part of the field | $3.25 |
