heir beaks longer than that of the Rock-pigeon,
proportionally with the size of their bodies._

+--------------------------------------+----------+---------------------+
| | | Difference |
| | | between |
| | | actual and |
| | | calculated |
| | | length of |
| Name of Breed. | Actual | feet, in |
| | length | proportion to |
| | of | length of |
| | Feet | feet and size |
| | | of body in the |
| | | Rock-pigeon |
| | +----------+----------+
| Wild rock-pigeon (mean measurement) | 2.02 | Too short| Too long |
| | | by | by |
+--------------------------------------+----------+----------+----------+
| Carrier | 2.60 | .. | 0.31 |
| " | 2.60 | .. | 0.25 |
| " | 2.40 | .. | 0.21 |
| " Dragon | 2.25 | .. | 0.06 |
| Bagadotten Carrier | 2.80 | .. | 0.56 |
| Scanderoon, white | 2.80 | .. | 0.37 |
| " Pigeon cygne | 2.85 | .. | 0.29 |
| Runt | 2.75 | .. | 0.27 |
| +----------+----------+----------+
| Number of specimens | 8 | .. | 8 |
+--------------------------------------+----------+----------+----------+

In these two tables we see in the first column the actual length of the
feet in thirty-six birds belonging to various breeds, and in the two
other columns we see by how much the feet are too short or too long,
according to the size of bird, in comparison with the rock-pigeon. In
the first table