| Plate | Page |
| I. | Various diagrams illustrative of vision and the optical effect of microscopes | 29 |
| II. | A. Ibid.—Needle micrometer, 54.—Coventry’s pearl, &c. micrometers | 59 |
| B. | Fig. 1. Wilson’s microscope and apparatus, 115.—Fig. 2. Ditto with a scroll | 117 |
| Fig. 3, 4. Small opake microscope and apparatus | 118 |
| III. | Fig. 1, 2, and 4. Adams’s lucernal microscope and apparatus | 64 |
| Fig. 3. Argand’s patent lamp | 69 |
| IV. | Fig. 1. Jones’s improved compound microscope and apparatus | 92 |
| Fig. 2. Jones’s most improved ditto, ditto | 99 |
| Fig. 3. Culpeper’s three-pillared microscope and apparatus | 104 |
| V. | Martin’s improved solar opake and transparent microscope | 106 |
| VI. | Fig. I. Withering’s botanical microscope, 123.—Fig. 2. Pocket botanical and universal microscope | 124 |
| Fig. 3. Lyonet’s anatomical microscope | 122 |
| Fig. 4. Transparent solar microscope and apparatus | 113 |
| Fig. 5. Tooth and pinion microscope | ibid. |
| Fig. 14. Common flower and insect microscope | note 125 |
| VII. | A. Cuff’s double constructed microscope and apparatus | 89 |
| B. | Ellis’s aquatic microscope | 119 |
| VIII. | Fig. 1-6. Portable microscope and telescope with apparatus | 125 |
| Fig. 7, 8. Botanical magnifiers | ibid. |
| IX. | Fig. 1, 2. Engine for cutting sections of wood, and appendage | 127 |
| Fig. 3, 4. Jones’s improved lucernal microscope and apparatus | 80 |
| Fig. 5, 7. The Rev. Dr. Prince’s and Mr. Hill’s improvements on the illuminating lenses and lamp of the lucernal microscope | 84 |
| Fig. 6. Lanthorn microscope and screen | 88 |
| X. | Fig. 1, 2. Nest of the phalÆna neustria.—Fig. 3, 4. Vertical section of ditto. | |
| Fig. 5, 6. Horizontal section | 287 |
| Fig. 7, 8. Scales of the parrot fish, 355.—Fig. 9, 10. Scales of sea perch | 356 |
| XI. | Fig. 1, 2, 3. Larva of the musca chamÆleon | 248 |
| Fig. 4, 5. Eels in blighted wheat | N.B. The reader will find no references to the several letters which appear in the bodies of these figures, for reasons assigned by the author as above; in order not to deface the plate, they were suffered to remain.
ESSAYS
ON THE
MICROSCOPE.
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