We may therefore expect in primitive asceticism to find many abstentions and much self-torture apparently valueless for the training of character and discipline of the feelings, which are the essence of any healthy asceticism.
He did not suggest that every variation and every character must have a "selection value," although he pointed out that, because of our ignorance of animal physiology, it was extremely rash to set down any characters as valueless to their owners.
On the other hand, principles are valueless without law and order; and Burghley's craft and subtlety prepared a security in which principles might find some scope.
Heysham added to Hutchins's Cumberland a list of birds of that county, whilst in the same year began Thomas Lord's valueless Entire New System of Ornithology, the text of which was written or corrected by Dr Dupree, and in 1794 Donovan began a History of British Birds which was only finished in 1819 - the earlier portion being reissued about the same time.
Amidst much that is valueless there are some useful notices concerning the state of agriculture at the time in different parts of England.