Do we find in the last observation an indication of a growing distaste for such work? One cannot tell. Between 5.49 p.m. and 6.36 p.m. there are no observations recorded. Perhaps this period of forty-seven minutes--three-quarters of an hour--were devoted by the young vivisectors to the conviviality of their evening repast. Then the usual observations were renewed. But at 7.10 p.m., while again "stimulating the sciatic nerve," suddenly the dog's heart stopped. At 7.12 p.m. "the dog died." During a period from eleven o'clock in the forenoon until after seven o'clock in the evening--EIGHT HOURS AND THIRTEEN MINUTES--the little animal had been stretched upon the rack.

Its "splendid condition" had enabled it to survive the tortures to which its three less vigorous companions in martyrdom had long before succ.u.mbed, and had made it possible for many hours to play upon exquisite sensibility.

"PAIN," said Professor Langley to the Royal Commissioners, :WOULD CAUSE A RISE IN BLOOD-PRESSURE."

WAS THERE NOT REPEATEDLY A RISE OF BLOOD-PRESSURE IN THIS EXPERIMENT?

We call attention to no other details.

Let us study these vivisections further. When animals were subjected to injuries calculated to make the strongest impression uppon their sensibility, was not the response A RISE IN BLOOD-PRESSURE?

EXPERIMENT 38. A small female spaniel, weighing about 13 pounds.

Ether is said to have been used for anaesthesia.

"12.54 p.m. Blood-pressure 98 millimetres.

1.11 p.m. HIND-FOOT BURNED. THE BLOOD-PRESSURE ROSE RAPIDLY TO 118 MILLIMETRES. A slow fall followed.

1.42 p.m. THE FOOT WAS BURNED. A SHARP RISE IN BLOOD-PRESSURE FOLLOWED."

The dog died of heart failure, after an experience of nearly five hours in the hands of the vivisectors.

EXPERIMENT 73. A dog, weighing about 15 pounds. Morphia and ether said to have been used. Did they prevent sensation under such "stimulation" as follows:

"APPLICATION OF THE BUNSEN FLAME TO THE FOOT FOR FOUR SECONDS WAS FOLLOWED BY A DECIDED RISE IN THE BLOOD-PRESSURE.... The blood- pressure was maintained higher BY REPEATED BURNINGS." These are the final words of the report of this experiment. We do not know when the dog died, nor to how many burnings he was subjected.

The use of fire as a method of "STIMULATION" of nerves seems to have been very attractive. For example:

EXPERIMENT 74. Dog. "GRADUAL BURNING OF THE LEFT HIND-FOOT PRODUCED A VERY MARKED RISE (of blood-pressure). THE RISE WAS MAINTAINED BY SLOWLY SCORCHING THE PAWS. AFTER THE EFFECT BEGAN TO WEAR OUT IN ONE PAW, ANOTHER WAS STIMULATED IN A SIMILAR MANNER, SO THAT THE BLOOD- PRESSURE WAS MAINTAINED FOR TWENTY MINUTES."

Of what possible value was such an experiment? Does any one believe that in a human being blood-pressure will ever be maintained by slowly scorching the hands and feet of the patient?

EXPERIMENT 75. Small dog, weighing about 13 pounds. Morphia and ether said to have been used. During this experiment the intestines were exposed and manipulated, and the foot and tail "CRUSHED." "THE LEFT HIND-FOOT WAS BURNED; A RISE IN THE BLOOD-PRESSURE FOLLOWED."

EXPERIMENT 96. Dog. NO ANAESTHETIC MENTIONED. Artificial respiration. "BURNING HIND-PAW PRODUCED A RISE IN BLOOD-PRESSURE."

After administration of CURARE, there was another "BURNING OF THE PAW," the blood-pressure did not respond, and shortly after, the dog died.

EXPERIMENT 95. Dog, in good condition. NO ANAESTHETIC MENTIONED.

Integument removed from three-fourths of the body. "BURNING OF THE HIND-PAW. ABRUPT RISE (of blood-pressure), 55 MILLIMETRES, then an equal fall. The denuded surfaces were roughly sponged for a considerable time." Then CURARE was given, and artificial respiration followed.

EXPERIMENT 46. Mongrel; good condition. An excessive amount of ether given at beginning; artificial respiration became necessary.

Extensive operations were made, such as crushing the paws, breaking the legs, and manipulating the nerve trunks. These were followed by A RISE IN BLOOD-PRESSURE.

EXPERIMENT 104. NO ANAESTHETIC NAMED. Dog.

"11.26 a.m. Animal reduced to surgical shock by skinning and mechanically irritating the raw surface.

11.36 a.m. CURARE given.

11.58 a.m. Electrical stimulation of sciatic (nerve). RISE OF BLOOD-PRESSURE.

12.48 p.m. Sciatic nerve stimulated. RISE OF BLOOD-PRESSURE.

1.12 p.m. Electrical stimulation of sciatic nerve cause A RISE ...

IN BLOOD PRESSURE.

2.40 p.m. Animal died."

When Dr. Francis Gotch, F.R.S., the professor of physiology in the University of Oxford, was examined before the late Royal Commission on Vivisection, he testified that under curare an animal could not even blink an eye, so complete is the immobility produced by this drug. Yet to the eye of the experimenter would there not be something to tell him whether or not the animal was feeling pain?

"I should say so," replied the physiologist--"in the alternations of blood-pressure."

"IT IS A RISE OF BLOOD-PRESSURE, is it not?" inquired one of the Commissioners.

"YES," was the physiologist's curt reply.

"But it would be diminished if the animal was absolutely anaesthetized?"

"YES," was the reply of Dr. Gotch.

"Is a change in blood-pressure the only mode by which you can objectively determine whether the animal is conscious, or suffering pain, if under the influence of curare?" somewhat later, he physiologist was asked.

"I suggest that THAT IS ONE OBVIOUS WAY."

Let us turn again to the experiment just quoted. No anaesthetic is mentioned. Curare was administered, the sole effect of which is to render the living animal as motionless as a corpse. Three times the greta nerve was electrically "stimulated," and each time there was that RISE OF BLOOD-PRESSURE which we are told upon the highest authority was the "ONE OBVIOUS WAY" of determining the presence of pain.

Keeping in mind this testimony of the professors of physiology at the Universities of Oxford, of Cambridge, and of London, that if pain were present during a vivisection IT WOULD CAUSE A RISE OF THE BLOOD- PRESSURE, let us now examine a little more carefully some of the experiments referred to in the volume reviewed in the previous chapter. We have had a.s.surances of their painlessness. But to the scientific man a.s.surances are of little value as compared with the testimony of the instrument. Were any of these experiments a.s.sociated with a "RISE IN BLOOD-PRESSURE"? It is unnecessary to study them in their relation to other phenomena. In the early "stimulations of a nerve trunk, a rise in blood-pressure was always produced"; but after a number of repet.i.tions the time came when no effect was produced, or the pressure fell; the point of exhaustion had been reached. But let us note what the instrument recorded. The italics are ours.

EXPERIMENT 5. "Under incomplete anaesthesia, CRUSHING OF FOOT CAUSED A VERY SHARP RISE, followed by an equally sharp decline of pressure.

This was repeated several times." (The author also tells us that "under full anaesthesia, crushing of the paws" caused a rise. One may question the completeness of the insensibility.)

EXPERIMENT 8. Fox terrier, two years old; ether.... CRUSHING OF THE PAW WAS ATTENDED BY IMMEDIATE RISE..... Crushing of the fore-leg WAS ATTENDED BY A RISE.... Crushing of the foot, ATTENDED BY A RISE.

Cutting skin of thigh and leg was ATTENDED BY A RISE.

EXPERIMENT 9. "CRUSHING OF THE PAW WAS FOLLOWED BY A RISE, and continual cutting and crushing of the paw BY A STILL FURTHER RISE OF PRESSURE."

EXPERIMENT 17. Several loops of intestines were withdrawn and placed IN BOILING WATER, ATTENDED BY A RAPID RISE of the blood-pressure, followed soon by a fall.

EXPERIMENT 28. Hip-joint amputation made on both sides caused a rise in pressure. GRASPING SCIATIC NERVE WITH FORCEPS and MAKING TRACTION (pulling upon the nerve) CAUSED A RISE.

EXPERIMENT 36. Small white dog.... HOT WATER introduced into abdominal cavity PRODUCED A RISE.

EXPERIMENT 59. Spaniel, female; weight only 13 pounds. It has "been nursing its puppies," and is very cross. Duration of experiment, one and a half hours. Manipulation of ovaries caused slight RISE OF BLOOD-PRESSURE.

EXPREIMENT 76. Dog. Among other procedures, the vivisectors "APPLIED A LARGE GAS-FLAME to the posterior extremities in the region of the knee; a slight rise. Repeated the application for a longer time; slight rise.... APPLICATION OF A BUNSEN FLAME TO THE NOSE, PRODUCING A SLIGHT RISE IN BLOOD-PRESSURE."

EXPERIMENT 82. A small female dog; weight oly 9 pounds. Time of experiment, one hour and fifty-five minutes. "One-third of a grain of CURARE and one-twelfth of a grain of morphia were injected into the jugular vein." After various manipulations, there was "APPLICATION OF BUNSEN'S FLAME TO THE RIGHT HIND-FOOT," causing "AN APPRECIABLE RISE IN THE BLOOD-PRESSURE."

EXPERIMENT 87. Dog. Time of experiment, two hours and forty-five minutes. "Injected CURARE and morphine into the jugular vein; artificial respiration maintained.... The sciatic nerve was exposed and stimulated by a faradic current. A SHARP INCREASE IN BLOOD-PRESSURE during the period of stimulation was noted."[1]

[1] Concerning the rise of blood-pressure as the sign of an animal's sensibility to painful impressions, when under the influence of CURARE, see testimony of Professor Gotch of Oxford University, quoted on a preceding page.

EXPERIMENT 94. "Electrical stimulation of sciatic nerve produced MARKED INCREASE IN BLOOD-PRESSURE.... Application of Bunsen's flame to the foot; RISE IN BLOOD-PRESSURE.... REPEATED APPLICATION OF BUNSEN'S FLAME FOR A PERIOD OF TWO MINUTES PRODUCED DECIDED RISE IN BLOOD- PRESSURE."

EXPERIMENT 95. "Application of Bunsen's flame to the paw produced but slight rise.... Bunsen's flame applied to the foot, CAUSING RISE IN BOTH PRESSURES.... Application of BUNSEN'S FLAME NOW PRODUCED A SHARP RISE IN THE PRESSURES." Then the blood-pressure fell, and though the vivisector applied flame to the intestines, it produced no effect so far as the blood-pressure was concerned.

EXPERIMENT 97. "Application of A BUNSEN'S FLAME PRODUCED THE CHARACTERISTIC INCREASE IN BLOOD-PRESSURE.... Stimulation of the sciatic nerve by the faradic current produced an INCREASE IN BLOOD- PRESSURE.... Repet.i.tion of the stimulus produced A FURTHER RISE IN BLOOD-PRESSURE...."