...movement of the leaflet of Desmodium, for instance, a weight so small as four-hundredths of a gramme is enough to arrest the pulsating leaflets. When employing...lever, the extremely minute friction offered by the smoked glass surface of the recording plate is sufficient in this case to cause complete cessation...

...feeble, and in the movement of the verysmall leaflets of Desmodium gyrans, or the telegraph-plant, for instance, a weight so small as fourhundredths of a gram is enough to arrest the pulsation of the leaflets. The difficulty could not be removed so long as the writing lever remained...

...feeble, and in the movement of the very small leaflets of Desmodium gyrans or the telegraph plant, for instance, a weight so small as four-hundredths of a gram is enough to arrest the pulsation of the leaflets. Even in the leaf of Mimosa the friction offered is enough to introduce serious...

...feeble, and in the movement of the very small leaflets of Desmodium yyrans, or the Telegraph plant, for instance, a weight so small as four-hundredths of a gram is enough to arrest the pulsation of the leaflets. Even in the leaf of Mimosa the friction offered is enough to introduce serious...

...scratch of the needle point on the smoked surface offset, very largely, the response of the plant — " a weight so small as four-hundredths of a gram is enough to arrest the pulsation of the leaflets." Still more sensitive apparatus was therefore necessary, and to obtain this...

...feeble, and in the movement of the very small leaflets of Desmodium gyrans or the telegraph plant, for instance, a weight so small as four-hundredths of a gram is enough to arrest the pulsation of the leaflets. Even in the leaf of Mimosa the friction offered is enough to introduce serious...