194 DROSERA ROTUNDIFOUA. [Cdap. X. 



(5) A minute bit of meat was piaced on one side of the disc; 

 next day tiie noifjhlM)uring short tentacles were iiitlectcd, a well aa 

 in a sli^lit degree three or four on the opposite side near the ftjot- 

 stalk. On the second day these latter tentacles showed signs of re- 

 expanding, so I added a fresh bit of meat at nearly the same spot, 

 and after two days some of the short tentacles on the opposite 

 side of the disc were inflected. As soon as these began to re- 

 expand, I added another bit of meat, and next day all the tentacles 

 on the opposite side of the disc were inflected towards the meat; 

 whereas we have seen that those on the same side were affected 

 by the first bit of meat which was given. 



Now for the general results. Of the eighteen leaves on 

 which bits of meat were placed on the right or left sides of 

 the disc, eight had a vast number of tentacles inflected on 

 the same side, and in four of them the blade itself on this 

 side was likewise inflected; whereas not a single tentacle 

 nor the blade was affected on the opposite side. These leaves 

 presented a very curious appearance, as if only the in- 

 flected side was active, and the other paralysed. In the re- 

 maining ten cases, a few tentacles became inflected beyond 

 the medial line, on the side opposite to that where the meat 

 lay; but, in some of these cases, only at the proximal or 

 distal ends of the leaves. The inflection on the opposite 

 side always occurred considerably after that on the same 

 side, and in one instance not until the fourth day. We have 

 also seen with No. 5 that bits of meat had to be added thrice 

 before all the short tentacles on the opposite side of the disc 

 were inflected. 



The result was widely different when bits of meat were 

 placed in a medial line at the distal or proximal ends of the 

 disc. In three of the seventeen experiments thus made, 

 owing either to the state of the leaf or to the smallness of the 

 bit of meat, only the immediately adjoining tentacles were 

 affected ; but in the other fourteen cases the tentacles at the 

 opposite end of the leaf were inflected, though these were as 

 distant from where the meat lay as were those on one side of 

 the disc from the meat on the opposite side. In some of the 

 present cases the tentacles on the sides were not at all af- 

 fected, or in a less degree, or after a longer interval of time, 

 than those at the opposite end. One set of experiments is 

 worth giving in fuller detail. Cubes of meat, not quite so 

 small as those usually employed, were .placed on one side 



