"The study of a number of specimens of our southern California species, which builds the cork-type door, including observations of them at night, when they are particularly active, indicates that the construction of the tube involves other material than the silken lining employed by many burrowing spiders. In the excavation of the tube and retention of the walls, the spider appears to employ a glairy substance, which thoroughly saturates the soil and renders the interior of the tube of almost cement- like hardness. It is then plastered with a thick jet of silk from the spinning glands. This interior finishing process appears to be quite rapid, a burrow being readily lined within a couple of hours.
"The construction of the trap-door is a far more complicated process, this convex, beautifully bevelled entrance with its hinge requiring real scientific skill. Judging from observations on a number of specimens, the work is done from the outside, the spider first spinning a net-like covering over the mouth of the tube. This is thickened by weaving the body over the net, each motion leaving a smoky trail of silk. Earth is then shoveled into the covering, the spider carefully pushing the particles toward the centre, which soon sags, and assumes the proper curvature, and automatically moulds against the bevelled walls of the tube.
"The shoveling process must be nicely regulated to produce the proper bevel and thickness of the door. Then the cementing process is applied to the top, rendering the door a solid unit. From the actions of these spiders,—which often calmly rest an hour without a move,—it appears that the edges of the door are now subjected, by the stout and sharp fangs, to a cutting process like that of a can opener, leaving a portion of the marginal silk to act as a hinge. This hinge afterward receives some finishing touches, and the top of the door is either pebbled or finished with a few fragments of dead vegetation, cemented on, in order to exactly match the surrounding soil."
V
THE RIGHTS OF WILD ANIMALS
Every harmless wild bird and mammal has the right to live out its life according to its destiny; and man is in honor bound to respect those rights. At the same time it is a mistake to regard each wild bird or quadruped as a sacred thing, which under no circumstances may be utilized by man. We are not fanatical Hindus of the castes which religiously avoid the "taking of life" of any kind, and gently push aside the flea, the centipede and the scorpion. The reasoning powers of such people are strictly limited, the same as those of people who are opposed to the removal by death of the bandits and murderers of the human race.
The highest duty of a reasoning being is to reason. We have no moral or legal right to act like idiots, or to become a menace to society by protecting criminal animals or criminal men from adequate punishment. Like the tree that is known by its fruit, every alleged "reasoning being" is to be judged by the daily output of his thoughts.
Toward wild life, our highest duty is to be sane and sensible, in order to be just, and to promote the greatest good for the greatest number. Be neither a Hindu fanatic nor a cruel game- butcher like a certain wild-animal slaughterer whom I knew, who while he was on earth earned for himself a place in the hottest corner of the hereafter, and quickly passed on to occupy it.
The following planks constitute a good platform on which to base our relations with the wild animal world, and by which to regulate our duty to the creatures that have no means of defense against the persecutions of cruel men. They may be regarded as representing the standards that have been fixed by enlightened and humane civilization.
THE WILD ANIMALS' BILL OF RIGHTS
This Bill of Rights is to be copied and displayed conspicuously in all zoological parks and gardens, zoos and menageries; in all theatres and shows where animal performances are given, and in all places where wild animals and birds are trained, sold or kept for the pleasure of their owners.
Article 1. In view of the nearness of the approach of the higher animals to the human level, no just and humane man can deny that those wild animals have certain rights which man is in honor bound to respect.
Art. 2. The fact that God gave man "dominion over the beasts of the field" does not imply a denial of animal rights, any more than the supremacy of a human government conveys the right to oppress and maltreat its citizens.
Art. 3. Under certain conditions it is justifiable for man to kill a limited number of the so-called game animals, on the same basis of justification that domestic animals and fowls may be killed for food.
Art. 4. While the trapping of fur-bearing animals is a necessary evil, that evil must be minimized by reducing the sufferings of trapped animals to the lowest possible point, and by preventing wasteful trapping.
Art. 5. The killing of harmless mammals or birds solely for "sport," and without utilizing them when killed, is murder; and no good and humane man will permit himself to engage in any such offenses against good order and the rights of wild creatures.
Art. 6. Shooting at sea-going creatures from moving vessels, without any possibility of securing them if killed or wounded, is cruel, reprehensible, and criminal, and everywhere should be forbidden by ship captains, and also by law, under penalties.
Art. 7. The extermination of a harmless wild animal species is a crime; but the regulated destruction of wild pests that have been proven guilty, is sometimes necessary and justifiable.
Art. 8. No group or species of birds or mammals that is accused of offenses sufficiently grave to merit destruction shall be condemned undefended and unheard, nor without adequate evidence of a character which would be acceptable in a court of law.
Art. 9. The common assumption that every bird or mammal that offends, or injures the property of any man, is necessarily deserving of death, is absurd and intolerable. The death penalty should be the last resort, not the first one!
Art. 10. Any nation that fails adequately to protect its crop-and- tree-protecting birds deserves to have its fields and forests devastated by predatory insects.
Art. 11. No person has any moral right to keep a wild mammal, bird, reptile or fish in a state of uncomfortable, unhappy or miserable captivity, and all such practices should be prevented by law, under penalty. It is entirely feasible for a judge to designate a competent person as a referee to examine and decide upon each case.
Art. 12. A wild creature that cannot be kept in comfortable captivity should not be kept at all; and the evils to be guarded against are cruelly small quarters, too much darkness, too much light, uncleanliness, bad odors, and bad food. A fish in a glass globe, or a live bird in a cage the size of a collar-box is a case of cruelty.
Art. 13. Every captive animal that is suffering hopelessly from disease or the infirmities of old age has the right to be painlessly relieved of the burdens of life.
Art. 14. Every keeper or owner of a captive wild animal who through indolence, forgetfulness or cruelty permits a wild creature in his charge to perish of cold, heat, hunger or thirst because of his negligence, is guilty of a grave misdemeanor, and he should be punished as the evidence and the rights of captive animals demand.
Art. 15. An animal in captivity has a right to do all the damage to its surroundings that it can do, and it is not to be punished therefor.
Art. 16. The idea that all captive wild animals are necessarily "miserable" is erroneous, because some captive animals are better fed, better protected and are more happy in captivity than similar animals are in a wild state, beset by dangers and harassed by hunger and thirst. It is the opinion of the vast majority of civilized people that there is no higher use to which a wild bird or mammal can be devoted than to place it in perfectly comfortable captivity to be seen by millions of persons who desire to make its acquaintance.
Art.