Notes on Myriapoda. 29 
(x0) Gazacenatnre, J. ‘La phosphorescence chez les myriopodes de la 
famille des Geophilide—Kpoque et conditions physiologiques de 
lapparition de la phosphorescence.” Mém. Zool. Soc. de I*rance 
. pour l'année 1890, t. iii. 1°* pt. 1889, pp. 136-146. 
(11) Pureson, T. L. ‘Phosphorescence, or the Emission of Light by 
Minerals, Plants, and Animals.’ London, 1862. 
(12) Veruorrr, C. W. ‘Chilopoda” in Bronn’s ‘ Klassen und Ord- 
nungen des Tier-Reichs,’ 1902-8. 
16 Bank Street, 
Darwen, Lancashire. 
Table to show Data of Three Experiments on the Incidence 
and Decline of Luminosity in Geophilus carpophagus. 
No. of seconds 
Clock time ars 
from beginning 
Itensity in 
(seconds). of experiment. eye-units, 
EXPERIMENT 1, 33°00 0:00 0:00 
34°50 1:50 100-00 
45:00 12:00 50:00 
57:00 24-00 25:00 
lmin. 68:00 85:00 1:00 * 
EXPERIMENT 2. 34:00 0:00 0:00 
36°00 2-00 100-00 
37°00 3:00 50-00 
47:00 13°00 25:00 
1 min: - 3:00 29-00 2 00 
11:00 37:00 1:00 * 
2min. 0:00 86:00 0:90 
13°00 99-00 0:90 
40:00 126:00 0:90 
38min. 0:00 146-00 0:90 
40:00 186:00 0°80 
EXPERIMENT 38. 11:00 0:00 0:00 
12:00 1:00 100-00 
14-00 3°00 50:00 
23:00 12:00 25°00 
31-00 20°00 2-00 
35°00 24:00 1:00 * 
and as in Experiment 2, after the 24th second. 
* I. e,, same intensity as that of light given by test-slide. 
