The Demonstrable Competence of Dr. Voss

Being excerpts from the private correspondence of Mr. Theodore Halloway, F.R.C.S., Curator of Surgical Instruments, The Whitmore Collection, London, addressed to his colleague Dr. Patience Albright, M.D., of Edinburgh; together with certain annotations recovered from the margins of the Collection's acquisition ledger.

19th March, 1903

Dear Patience,

I write to you in a state of considerable excitement — though I confess, as I re-read that sentence, that the word excitement is doing rather more work than it perhaps ought. Let us say instead: a state of considerable alertness. The distinction will become clear.

You will recall that I mentioned, at the Edinburgh symposium, the acquisition we had made of the Voss Demonstrator. I see from your subsequent letter that you did not, in fact, recall this, and that you spent the intervening months under the impression I had said something about a "moss thermometer," which is not a thing and never has been. So: the Voss Demonstrator. I shall begin again.

Dr. Emil Voss, Heidelberg-trained, practicing in London between 1871 and 1889, constructed — at what must have been considerable personal expense and, one suspects, considerable personal mania — a mechanical automaton designed to perform, for the purposes of surgical instruction, a complete bilateral thoracic drainage procedure upon a canvas-and-leather dummy of his own manufacture. The automaton is jointed at the shoulder, elbow, wrist, and each of the four operative fingers, these being articulated via a system of clockwork and tension wire of extraordinary delicacy. The whole device stands approximately five feet and three inches, is dressed in what I can only describe as a miniature surgical apron of remarkable precision, and bears upon its brass face — for it has a face, Patience; Voss gave it a face — an expression of what the acquisition notes describe as "professional serenity."

I would describe it differently. But I am getting ahead of myself.

The Demonstrator came to us from the estate of a Harley Street collector, unnamed in the deed of sale, who had kept it in a ground-floor storeroom for eleven years and had never, according to the solicitor who handled the transfer, wound it. This struck me as a peculiar restraint. The solicitor struck me as a man who was very glad to be leaving our premises.

We spent three weeks in restoration. My assistant, Mr. Crale — a meticulous young man, commendably literal-minded, which I had always considered a virtue in this work — undertook the mechanism himself, consulting Voss's original diagrams, which came with the device in a leather folio so old it had begun to smell like something other than leather. On the fourteenth day of restoration, Crale wound the key for the first time.

The Demonstrator did not move.

Crale wound it again.

Still nothing.

On the third attempt, the right hand rose — slowly, with the patient deliberation of a man who has been waiting some time for the opportunity — and the four operative fingers spread above the dummy's chest and remained there, hovering, at a height of perhaps four inches, while the mechanism ticked quietly inside the torso and the clock-spring, one presumes, unwound.

Then it stopped.

Crale made a note in the ledger. First demonstration incomplete. Mechanism requires further calibration. He has neat handwriting. He had neat handwriting.

23rd March, 1903

I am writing this at half past two in the morning, and I want you to understand that I am not a man who writes letters at half past two in the morning. I have not done so since my second year at university, when the provocation was considerably more straightforward.

The Demonstrator has been fully calibrated. It performed the complete procedure twice yesterday afternoon before an audience of four, including myself, and it is — I must be honest with you, Patience — remarkable. Voss was a genius of the mechanical, whatever else he may have been. The fingers move with a surety that is almost unsettling in a device of brass and wire; the incision-marks left in the dummy's leather chest are precise to the millimetre. The assembled physicians applauded. I applauded. Even Crale, who does not applaud, stood with his arms at his sides in a posture that I have come to recognise as his equivalent of applause.

The Demonstrator, having completed its procedure, lowered its hands.

This is the correct and expected behaviour.

At twenty minutes past midnight, I was in my office reviewing the provenance notes when I heard — from the exhibition hall, which is directly below, and which was locked — the sound of the mechanism.

That ticking. Deliberate. Patient.

[Marginal annotation, recovered from Acquisition Ledger vol. 14, in handwriting identified as T. Halloway's, inserted opposite the entry for 24th March, 1903. The annotation is written in a hand considerably less steady than that which produced the surrounding entries.]

The key was in my desk drawer.

The dummy was on the table.

The hands were positioned as they had been on the fourteenth day — four inches above the chest, spread, hovering — but they were moving. Not in the pattern of the procedure. Not in any pattern I could name. Moving in the manner of a man's hands when he is thinking, when he has not yet decided where to begin.

The face — that brass face with its expression of professional serenity — was oriented not toward the dummy.

The door was behind me.

24th March, 1903

Patience,

I apologise for the previous letter. I was fatigued, and I had been reading too much of Voss's personal correspondence, which was included in the folio and which I have since placed in a box and put the box in a different room. Voss wrote about the Demonstrator in terms that a reasonable person would find — irregular. He wrote about it with a tenderness I would not ordinarily associate with a man describing a machine.

He also wrote, in the final letter of the collection — addressed to a colleague in Bonn, apparently never sent — that he believed the Demonstrator had, through some process he could not elucidate, "retained" something from its years of use. He did not specify what, precisely, a brass automaton might retain. He used the word memory once and then crossed it out and wrote inclination instead, and then crossed that out too, and the letter ends there.

The Demonstrator is fully functional. It is a credit to this Collection. Tomorrow we open the spring exhibition, and it will perform the bilateral thoracic drainage procedure four times, before an audience of surgeons and students, and they will applaud, and I will stand to the side and say what curators say on such occasions.

I have asked Crale to stand beside it.

Crale asked why.

I told him it was a precaution. Against nothing in particular. He accepted this, being, as I said, a commendably literal-minded young man.

He was standing beside it this morning when I came in, at eight o'clock, and the Demonstrator's head turned — that slow, clockwork turn, that patient reorientation — and regarded him with its expression of professional serenity.

Crale looked at me.

I do not know what I looked like in that moment. I know what I felt.

I felt that the Demonstrator had made a selection, in the same way that a surgeon, surveying the room, makes a selection, and that the selection was not the dummy on the table, which had been there all along, and which had never been the point.

[The correspondence ends here. The spring exhibition of 1903 opened on schedule. The Whitmore Collection's records show four successful demonstrations of the Voss Demonstrator. The acquisition ledger's final entry, dated 25th March, reads only: "Mechanism performs as intended." The handwriting is Crale's.]

[There are no further entries by T. Halloway.]