85

p 13 Sept 30th 8O 30' 4 sticks with red paper Heads with cube of meat on one side 1873 Transmission of Motor Force (p13)

4O 45' no inflection at opposite side in all 4 leaves

9. P.m. No 4 perhaps a trace of inflection

Oct 1 7O A.m. (1) very slight action on opposite side

(2) hardly any on do

(3) very slight action do

(4) moderate inflect do

((12th (1) considerable action (2) very slight (3) hardly any action } on opposite side (4) slight confined to submargin)

4 same sized cube at distal or proximal end & central 4 sticks with blue paper Heads

4O 45' at (1) at distal end inflected, but meat rather central

(2) at do do do beginning to inflect

(3) inflected at both ends

(4) /O/

9. P m no 4 both ends now inflected

Oct 1st 7O A. m (1) almost every tentacle at both ends inflected

(2) do do do

(3) almost every tent do

(4) every tentacle do do

Oct 9th (1? ) ? 8O A.m — Looking to the above 12 groups of specs there can be no question that motor influence is transmitted more quickly & fully longitudinally than transversely. The difference cannot be accounted for by greater diameter transversely —

9th. 8O A.m. Angles not much removed

(over)

85v

(Remember cube of meat from same slice & same size )

Oct 1' 4O 45' I have compared the 4 of both lots & there is wonderful contrast; all the lateral (ie red) have some of marginal tentacles fully expanded on opposite side)

Transmission of Motor Influence

Oct 2d 8O 35' (1) exterior (2 rows) on opposite side unaffected

(2) do several rows inflected

(3) & 4 do do do; but the marginals discal tentacles on opposite side are inflected; with some few segregated it is wonderful these do not transmit their influence to the exterior ones.

Of the Blues (with meat put on all distal or proximal end, every tentacle is closely inflected in (1 & 2) & all excpt very few in 3 & 4

Oct 3d 8O 5' All in the same lots except that No' 4 red ie one on which the meat was placed on one side has all the tents on the opposite side inflected excpt the 3 outer marginal rows. (p. 16 good place to introduce) (It is a very remarkable fact seeing that all the tents on opposite side, except the 3 or 4 or 5outr rows, & that the inner marginals & those on the disc on the opposite side are absorbing meat & are segregated, that thy do not act on the immediately adjoining outer tentacles We must conclude, that tents which have been themselves excited, so as to bend over on object do not transmit themselves any further motor influence, & we must further conclude that when meat placed on one side the motor influence is not at first sent beyond the disc on the opposite side & some few more or less of the sub-marginals tentacles.—
(Perhaps outer rows cannot act centrifugally)

Oct 4th 8O 30 opposite side no more inflected some leaves reexpanded

Oct 5 8O all 4 reexpandng or reexpanded— it is certain that the opposite have never & never wd contract. (N B when thy are once decomposed in secreting thy cannot transmit motor influence, nor do thy transmit it, if excited by a distant stimulus : a gland must be itself excited before it cd become inflected before it will transmit motor influence— I think this agrees with little extent of spreading of excitement when I put meat on single discal gland for the centre bends towards it & touched the meat very few become inflected

—(A Section which receive excitement from centre cannot retransmit it, unless itself excited)

30th