has been often observed: as for instance, in another similar experiment by the author of the former, the tadpoles being in this case of larger size (average 49ôñ1 mm.)107.
| Days | 3 | 5 | 7 | 10 | 12 | 14 | 17 | 24 | 28 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Increment | 0ôñ86 | 2ôñ15 | 3ôñ66 | 5ôñ20 | 5ôñ95 | 6ôñ38 | 7ôñ10 | 7ôñ60 | 8ôñ20 | 8ôñ40 |
Or, by graphic interpolation,
| Days | Total increment | Daily do. |
|---|---|---|
| 1 | ôñ23 | ôñ23 |
| 2 | ôñ53 | ôñ30 |
| 3 | ôñ86 | ôñ33 |
| 4 | 1ôñ30 | ôñ44 |
| 5 | 2ôñ00 | ôñ70 |
| 6 | 2ôñ78 | ôñ78 |
| 7 | 3ôñ58 | ôñ80 |
| 8 | 4ôñ30 | ôñ72 |
| 9 | 4ôñ90 | ôñ60 |
| 10 | 5ôñ29 | ôñ39 |
| 11 | 5ôñ62 | ôñ33 |
| 12 | 5ôñ90 | ôñ28 |
| 13 | 6ôñ13 | ôñ23 |
| 14 | 6ôñ38 | ôñ25 |
| 15 | 6ôñ61 | ôñ23 |
| 16 | 6ôñ81 | ôñ20 |
| 17 | 7ôñ00 | ôñ19 etc. |
The acceleration curve is drawn in Fig. 39.
Here we have just what we lacked in the former case, namely a visible point of inflection in the curve about the seventh day (Figs. 38, 39), whose existence is confirmed by successive observations on the 3rd, 5th, 7th and 10th days, and which justifies to some extent our extrapolation for the otherwise unknown period up to and ending with the third day; but even here there is a short space near the very beginning during which we are not quite sure of the precise slope of the curve.
We have now learned that, according to these experiments, with which many others are in substantial agreement, the rate of growth in