156 Notes and Comments. 
ANIMAL LOCOMOTION. 
The Horniman Museum has issued ‘A Handbook to the 
Cases illustrating Animal Locomotion.’* It deals in a very 
instructive manner with numerous divisions of the animal 
kingdom, under the heads of swimming, creeping, burrowing, 
running, Jumping, climbing, parachuting, and flying. As a 
frontispiece is a plate from photographs of mackerel, ichthy- 
osaur, whale and dugong. Below it 1s the following description : 
“Convergence is the term applied to those cases in which the 
bodily forms of animals not genealogically related tend to 
1) Mackere!. P (2) ichthyosaur. 
(3) Killer Whale. (4) Dugong. 
resemble one another as the result of a similar mode of life. 
Each of the animals illustrated above, for example, has 
acquired its torpedo-shaped body, fin-like limbs, and _ flute- 
like tail in adaptation to an aquatic life quite independently 
of the others.’ The pamphlet has been written by Mr. H. N. 
Milligan. 
FOSSIL BEADS. 
In the Geological Magazine for March a Mr. Banton writes 
a note on ‘ Fossil beads (?) from the gravel of Bedfordshire : 
Are they evidence of human workmanship?’ He refers to 
the small perforated marble-shaped objects found in chalk 
rr ne eee ee SSS 
* London County Council, 46 pp. One penny. 
Naturalist, 
