5Q4. : CONCLUSIONS. 
feet (114), only a few feet (106 4); we also find the notices: “ap- 
parently about one third of the upperpart of its body was above 
water’ (93), “it partly raised itself above the surface of the water” (94). 
As is to be expected, the bunches decrease in size towards the 
tail (69, 102); of coarse this will always be the case. 
It seems that sometimes the undulations are limited only to the 
trunk of the animal: “I saw no bunches towards I thought the 
end of the tail, and I believe there were none; from where I 
judged his navel might be, to the end of his tail there were no 
bunches visible’ (44); “the first bunch appeared ten or twelve 
feet from his head” (69); “about thirty feet behind the head ap- 
peared the first coil” (81). 
The reader will remember (see Relative mobility of organs) that 
the animal may crook up its back, or the layer of bacon of its 
back, when lying perfectly still. It seems evident that it also is 
able to swim with its flappers, whilst its back is in such a con- 
dition: “the bunches appeared to be fixed’? (60); “his bunches 
appeared to be not altogether uniform in size, and as he moved 
along some appeared to be depressed and others brought above 
the surface, though I could not perceive any motion in them” 
(63); “the protuberances were not from his motion, as they were 
the same whether in slow or in rapid movement” (69). See also 
tee lai, 
I am convinced that the animal, swimming with vertical undu- 
lations, usually presses its flappers to its body. Once it was seen 
from above (82) and it seemed to be eel-shaped, and the flappers 
must have been invisible, at least they are not mentioned; it 
swam with vertical undulations. 
But there are reasons to believe that the animal, swimming 
with vertical undulations, at a moderate rate, also uses its flappers. 
Once it was seen from above, moving with vertical undulations, 
and its flappers are tolerably well described (119). And when we 
read: “the motion of his body was rising and falling, the head 
moderately vibrating from side to side’ (48), “the motion of his 
head was sideways and quite moderate, and the motion of his body 
was up and down” (48), “his motion was partly vertical, partly 
horizontal” (69), “serpentine movements, some up and down, some 
to the side’ (91), we must conclude that the animal swimming 
with vertical undulations may indeed also use its flappers. If only 
the foreflapper and the hind one of the right side were used, the 
animal would turn to the left, if, on the contrary, it used its 
