Ogar.D. INFLECTION INDIRECTLY CAUSED 25 
than 17 m. 30 s. In the course of some hours this 
minute bit of meat, from having been brought into 
contact with some of the glands of the central disc, 
acted centrifugally on the outer tentacles, which all be- 
came closely inflected. Fragments of flies were placed 
on the glands of four of the outer tentacles, ex- 
tended in the same plane with that of the blade, and 
three of these fragments were carried in 35 m. through 
an angle of 180° to the centre. The fragment on 
the fourth tentacle was very minute, and it was 
not carried to the centre until 3 hrs. had elapsed. In 
three other cases minute flies or portions of larger 
ones were carried to the centre in 1 hr. 30s. In 
these seven cases, the fragments or small flies, which 
had been carried by a single tentacle to the central 
glands, were well embraced by the other tentacles 
after an interval of from 4 to 10 hrs. 
J also placed in the manner just described six small 
balls of writing-paper (rolled up by the aid of pincers, 
so that they were not touched by my fingers) on the 
glands of six exterior tentacles on distinct leaves; 
three of these were carried to the centre in about 1 hr., 
and the other three in rather more than 4 hrs.; but 
after 24 hrs. only two of the six balls were well em- 
braced by the other tentacles. It is possible that 
the secretion may have dissolved a trace of glue or 
animalised matter from the balls of paper. Four par- 
ticles of coal-cinder were then placed on the glands 
of four exterior tentacles; one of these reached 
the centre in 3 hrs. 40 m.; the second in 9 hrs.; the 
third within 24 hrs., but had moved only part of the 
way in 9 hrs.; whilst the fourth moved only a very 
short distance in 24 hrs.,and never moved any farther. 
Of the above three bits of cinder which were ultimately 
carried to the centre, one alone was well embraced by 
