The doctor was unfailingly punctual in taking his meals. Dr. Kingsley, during the fourteen years he had acted as his agent, had always been able to make sure of finding him at home at his dinner hour, half-past two o'clock. But on Friday, November 23, 1849, to his surprise and that of his family, Dr. Parkman did not come home to dinner; and their anxiety was increased when the day passed, and there was still no sign of the doctor's return. Inquiries were made. From these it appeared that Dr. Parkman had been last seen alive between one and two o'clock on the Friday afternoon. About half-past one he had visited a grocer's shop in Bridge Street, made some purchases, and left behind him a paper bag containing a lettuce, which, he said, he would call for on his way home. Shortly before two o'clock he was seen by a workman, at a distance of forty or fifty feet from the Medical College, going in that direction. From that moment all certain trace of him was lost. His family knew that he had made an appointment for half-past one that day, but where and with whom they did not know. As a matter of fact, Professor John W. Webster had appointed that hour to receive Dr. Parkman in his lecture-room in the Medical College.

John W. Webster was at this time Professor of Chemistry and Mineralogy in Harvard University, a Doctor of Medicine and a Member of the American Academy of Arts and Sciences, the London Geological Society and the St. Petersburg Mineralogical Society. He was the author of several works on geology and chemistry, a man now close on sixty years of age. His countenance was genial, his manner mild and unassuming; he was clean shaven, wore spectacles, and looked younger than his years.

Professor Webster was popular with a large circle of friends. To those who liked him he was a man of pleasing and attractive manners, artistic in his tastes—he was especially fond of music—not a very profound or remarkable chemist, but a pleasant social companion. His temper was hasty and irritable. Spoilt in his boyhood as an only child, he was self-willed and self-indulgent. His wife and daughters were better liked than he. By unfriendly criticics{sic} the Professor was thought to be selfish, fonder of the good things of the table and a good cigar than was consistent with his duty to his family or the smallness of his income. His father, a successful apothecary at Boston, had died in 1833, leaving John, his only son, a fortune of some L10,000. In rather less than ten years Webster had run through the whole of his inheritance. He had built himself a costly mansion in Cambridge, spent a large sum of money in collecting minerals, and delighted to exercise lavish hospitality. By living consistently beyond his means he found himself at length entirely dependent on his professional earnings. These were small. His salary as Professor was fixed at L240 a year;(15) the rest of his income he derived from the sale of tickets for his lectures at the Medical College. That income was insufficient to meet his wants.

(15) I have given these sums of money in their English equivalents
in order to give the reader an idea of the smallness of the sum which
brought about the tragedy.

As early as 1842 he had borrowed L80 from his friend Dr. Parkman. It was to Parkman's good offices that he owed his appointment as a Professor at Harvard; they had entered the University as under-graduates in the same year. Up to 1847 Webster had repaid Parkman twenty pounds of his debt; but, in that year he found it necessary to raise a further loan of L490, which was subscribed by a few friends, among them Parkman himself. As a security for the repayment of this loan, the professor executed a mortgage on his valuable collection of minerals in favour of Parkman. In the April of 1848 the Professor's financial difficulties became so serious that he was threatened with an execution in his house. In this predicament he went to a Mr. Shaw, Dr. Parkman's brother-in-law, and begged a loan of L240, offering him as security a bill of sale on the collection of minerals, which he had already mortgaged to Parkman. Shaw accepted the security, and lent the money. Shaw would seem to have had a good deal of sympathy with Webster's embarrassments; he considered the Professor's income very inadequate to his position, and showed himself quite ready at a later period to waive his debt altogether.

Dr. Parkman was a less easy-going creditor. Forbearing and patient as long as he was dealt with fairly, he was merciless where he thought he detected trickery or evasion. His forbearance and his patience were utterly exhausted, his anger and indignation strongly aroused, when he learnt from Shaw that Webster had given him as security for his debt a bill of sale on the collection of minerals, already mortgaged to himself. From the moment of the discovery of this act of dishonesty on the part of Webster, Parkman pursued his debtor with unrelenting severity.

He threatened him with an action at law; he said openly that he was neither an honourable, honest, nor upright man; he tried to appropriate to the payment of his debt the fees for lectures which Mr. Pettee, Webster's agent, collected on the Professor's behalf. He even visited Webster in his lecture-room and sat glaring at him in the front row of seats, while the Professor was striving under these somewhat unfavourable conditions to impart instruction to his pupils—a proceeding which the Doctor's odd cast of features must have aggravated in no small degree.

It was early in November that Parkman adopted these aggressive tactics. On the 19th of that month Webster and the janitor of the College, Ephraim Littlefield, were working in the upper laboratory. It was dark; they had lit candles. Webster was reading a chemical book. As he looked up from the book he saw Parkman standing in the doorway leading from the lecture-room. "Dr. Webster, are you ready for me to-night?" asked Parkman. "No," replied the other, "I am not ready to-night." After a little further conversation in regard to the mortgage, Parkman departed with the ominous remark, "Doctor, something must be done to-morrow."

Unfortunately the Professor was not in a position to do anything. He had no means sufficient to meet his creditor's demands; and that creditor was unrelenting. On the 22nd Parkman rode into Cambridge, where Webster lived, to press him further, but failed to find him. Webster's patience, none too great at any time, was being sorely tried. To whom could he turn? What further resource was open to him? There was none. He determined to see his creditor once more. At 8 o'clock on the morning of Friday the 23rd, Webster called at Dr. Parkman's house and made the appointment for their meeting at the Medical College at half-past one, to which the Doctor had been seen hastening just before his disappearance. At nine o'clock the same morning Pettee, the agent, had called on the Professor at the College and paid him by cheque a balance of L28 due on his lecture tickets, informing him at the same time that, owing to the trouble with Dr. Parkman, he must decline to receive any further sums of money on his behalf. Webster replied that Parkman was a nervous, excitable man, subject to mental aberrations, but he added, "You will have no further trouble with Dr. Parkman, for I have settled with him." It is difficult to see how the Professor could have settled, or proposed to settle, with his creditor on that day. A balance of L28 at his bank, and the L18 which Mr. Pettee had paid to him that morning, represented the sum of Professor Webster's fortune on Friday, November 23, 1849.

Since the afternoon of that day the search for the missing Parkman had been unremitting. On the Saturday his friends communicated with the police. On Sunday hand-bills were issued stating the fact of the Doctor's disappearance, and on Monday, the 26th, a description and the offer of a considerable reward for the discovery of his body were circulated both in and out of the city. Two days later a further reward was offered. But these efforts were fruitless. The only person who gave any information beyond that afforded by those who had seen the Doctor in the streets on the morning of his disappearance, was Professor Webster. About four o'clock on the Sunday afternoon the Professor called at the house of the Revd. Francis Parkman, the Doctor's brother. They were intimate friends. Webster had for a time attended Parkman's chapel; and Mr. Parkman had baptised the Professor's grand-daughter. On this Sunday afternoon Mr. Parkman could not help remarking Webster's peculiar manner. With a bare greeting and no expression of condolence with the family's distress, his visitor entered abruptly and nervously on the object of his errand. He had called, he said, to tell Mr. Parkman that he had seen his brother at the Medical College on Friday afternoon, that he had paid him L90 which he owed him, and that the Doctor had in the course of their interview taken out a paper and dashed his pen through it, presumably as an acknowledgment of the liquidation of the Professor's debt. Having communicated this intelligence to the somewhat astonished gentleman, Webster left him as abruptly as he had come.