Biological Suggestions: Animal Sense Perceptions (Distant 1901)

Biological Suggestions. Animal Sense Perceptions was published in The Zoologist, 4th series, vol 5 and vol 6 in two parts:
 * Part 1, in: issue 723 (September, 1901), p. 321–338
 * Part 2, in: issue 731 (May, 1902), p. 161–178

Although the second part finishes with "to be continued", there are no further parts published.