(formed from ζύμωσις, fermentation, and μέτρον, measure), an instrument proposed by Swammerdam, in his book De Respiratione, with which to measure the degree of fermentation occasioned by the mixture of different matters, and the degree of heat which those matters acquire in fermenting; the same instrument is employed to ascertain the heat or temperature of the blood of animals. DIRECTIONS FOR PLACING THE PLATES OF VOL. XX.

PART I.

<table> <tr> <th>Plate</th> <th>to face</th> <th>page</th> </tr> <tr> <td>DXIII.—DXXIV.</td> <td>-</td> <td>112</td> </tr> <tr> <td>DXXV.—DXXVII.</td> <td>-</td> <td>120</td> </tr> <tr> <td>DXXVIII.</td> <td>-</td> <td>232</td> </tr> <tr> <td>DXXIX.—DXXXI.</td> <td>-</td> <td>272</td> </tr> <tr> <td>DXXXII.</td> <td>-</td> <td>280</td> </tr> <tr> <td>DXXXIII. & DXXXIV.</td> <td>-</td> <td>400</td> </tr> </table>

PART II.

<table> <tr> <th></th> <th></th> <th></th> </tr> <tr> <td>DXXXXV.</td> <td>-</td> <td>410</td> </tr> <tr> <td>DXXXVI.</td> <td>-</td> <td>432</td> </tr> <tr> <td>DXXXVII. & DXXXVIII.</td> <td>-</td> <td>488</td> </tr> <tr> <td>DXXXIX.</td> <td>-</td> <td>496</td> </tr> <tr> <td>DXL.</td> <td>-</td> <td>512</td> </tr> <tr> <td>DXLI.—DXLIII.</td> <td>-</td> <td>542</td> </tr> <tr> <td>DXLIV.—DLXX.</td> <td>-</td> <td>632</td> </tr> <tr> <td>DLXXI. & DLXXII.</td> <td>-</td> <td>646</td> </tr> <tr> <td>DLXXIII. & DLXXIV.</td> <td>-</td> <td>680</td> </tr> <tr> <td>DLXXV. & DLXXVI.</td> <td>-</td> <td>686</td> </tr> <tr> <td>DLXXVII.</td> <td>-</td> <td>700</td> </tr> <tr> <td>DLXXVIII.</td> <td>-</td> <td>792</td> </tr> <tr> <td>DLXXIX.—DLXXXI.</td> <td>-</td> <td>824</td> </tr> </table>