Doubtless in the society of so many worthy Philadelphians, the Priestleys were happy, for they had corresponded with not a few of them.

The longing for Northumberland became very great and one smiles on reading that the good Doctor thought "Philadelphia by no means so agreeable as New York ... Philadelphia would be very irksome to me....

It is only a place for business and to get money in." But in this City he later spent much of his time.

It was about the middle of July, 1794, that the journey to Northumberland began, and on September 14, 1794, Priestley wrote of Northumberland "nothing can be more delightful, or more healthy than this place."

Safely lodged among those dear to him one finds much pleasure in observing the great philosopher's activities. The preparation of a home for himself and his wife and the unmarried members of the family was uppermost in his mind. But much time was given to correspondence with loyal friends in England. Chief among these were the Reverends Lindsey and Belsham. The letters to these gentlemen disclose the plans and musings of the exile. For instance, in a communication to the former, dated September 14, 1794, he wrote:

The professor of chemistry in the College of Philadelphia is supposed to be on his death-bed ... in the case of a vacancy, Dr.

Rush thinks I shall be invited to succeed him. In this case I must reside four months in one year in Philadelphia, and one princ.i.p.al inducement with me to accept of it will be the opportunity I shall have of forming an Unitarian Congregation....

And a month later he observed to the same friend:

Philadelphia is unpleasant, unhealthy, and intolerably expensive.... Every day I do something towards the continuation of my Church History.... I have never read so much Hebrew as I have since I left England....

He visited freely in the vicinity of Northumberland, spending much time in the open. Davy, a traveler, made this note:

Dr. Priestley visited us at Sunbury, looks well and cheerful, has left off his perriwig, and combs his short grey locks, in the true style of the simplicity of the country.... Dined very pleasantly with him. He has bought a lot of eleven acres (exclusively of that which he is building on), which commands a delightful view of all the rivers, and both towns, i.e. Sunbury and Northumberland and the country. It cost him 100 currency.

It was also to Mr. Lindsey that he communicated, on November 12, 1794, a fact of no little interest, even today, to teachers of Chemistry in America. It was:

I have just received an invitation to the professorship of chemistry at Philadelphia ... when I considered that I must pa.s.s four months of every year from home, my heart failed me; and I declined it. If my books and apparatus had been in Philadelphia, I might have acted differently, but part of them are now arrived here, and the remainder I expect in a few days, and the expense and risk of conveyance of such things from Philadelphia hither is so great, that I cannot think of taking them back ... and in a year or two, I doubt not, we shall have a college established here.

It was about this time that his youngest son, Harry, in whom he particularly delighted, began clearing 300 acres of cheap land, and in this work the philosopher was greatly interested; indeed, on occasions he actually partic.i.p.ated in the labor of removing the timber. Despite this manual labor there were still hours of every day given to the Church History, and to his correspondence which grew in volume, as he was advising inquiring English friends, who thought of emigrating, and very generally to them he recommended the perusal of Dr. Thomas Cooper's

"Advice to those who would remove to America--"

Through this correspondence, now and then, there appeared little animadversions on the quaint old town on the Delaware, such as

I never saw a town I liked less than Philadelphia.

Could this dislike have been due to the fact that--

Probably in no other place on the Continent was the love of bright colours and extravagance in dress carried to such an extreme.

Large numbers of the Quakers yielded to it, and even the very strict ones carried gold-headed canes, gold snuff-boxes, and wore great silver b.u.t.tons on their drab coats and handsome buckles on their shoes.

And

Nowhere were the women so resplendant in silks, satins, velvets, and brocades, and they piled up their hair mountains high.

Furthermore--

The descriptions of the banquets and feasts ... are appalling.

John Adams, when he first came down to Philadelphia, fresh from Boston, stood aghast at this life into which he was suddenly thrown and thought it must be sin. But he rose to the occasion, and, after describing in his diary some of the "mighty feasts" and "sinful feasts" ... says he drank Madeira "at a great rate and found no inconvenience."

It would only be surmise to state what were the Doctor's reasons for his frequent declaration of dislike for Philadelphia.

The winter of 1794-1795 proved much colder "than ever I knew it in England," but he cheerfully requested Samuel Parker to send him a hygrometer, shades or bell-gla.s.ses, jars for electrical batteries, and

a set of gla.s.s tubes with large bulbs at the end, such as I used in the experiments I last published on the generation of _Air_ from water.

Most refreshing is this demand upon a friend. It indicates the keen desire in Priestley to proceed with experimental studies, though surroundings and provisions for such undertakings were quite unsatisfactory. The spirit was there and very determined was its possessor that his science pursuits should not be laid totally aside.

His att.i.tude and course in this particular were admirable and exemplary.

Too often the lack of an abundance of equipment and the absence of many of the supposed essentials, have been deterrents which have caused men to abandon completely their scientific investigations. However, such was not the case with the distinguished exile, and for this he deserved all praise.

From time to time, in old papers and books of travel, brief notes concerning Priestley appear. These exhibit in a beautiful manner the human side of the man. They cause one to wish that the privilege of knowing this worthy student of chemical science might have been enjoyed by him. For example, a Mr. Bakewell chanced upon him in the spring of 1795 and recorded:

I found him (Priestley) a man rather below the middle size, straight and plain, wearing his own hair; and in his countenance, though you might discern the philosopher, yet it beamed with so much simplicity and freedom as made him very easy of access.

It is also stated in Davy's "Journal of Voyage, etc."--

The doctor enjoys a game at whist; and although he never hazards a farthing, is highly diverted with playing good cards, but never ruffled by bad ones.

In May, 1795, Priestley expressed himself as follows:

As to the experiments, I find I cannot do much till I get my own house built. At present I have all my books and instruments in one room, in the house of my son.

This is the first time in all his correspondence that reference is made to experimental work. It was in 1795. As a matter of course every American chemist is interested to know when he began experimentation in this country.

In the absence of proper laboratory s.p.a.ce and the requisite apparatus, it is not surprising that he thought much and wrote extensively on religious topics, and further he would throw himself into political problems, for he addressed Mr. Adams on restriction "in the naturalization of foreigners." He remarked that--

Party strife is pretty high in this country, but the Const.i.tution is such that it cannot do any harm.

To friends, probably reminding him of being "unactive, which affects me much," he answered:

As to the chemical lectureship (in Philadelphia) I am convinced I could not have acquitted myself in it to proper advantage. I had no difficulty in giving a general course of chemistry at Hackney (England), lecturing only once a week; but to give a lecture every day for four months, and to enter so particularly into the subject as a course of lectures in a medical University (Pennsylvania) requires, I was not prepared for; and my engagements there would not, at my time of life, have permitted me to make the necessary preparations for it; if I could have done it at all. For, though I have made discoveries in some branches of chemistry, I never gave much attention to the common routine of it, and know but little of the common processes.

Is not this a refreshing confession from the celebrated discoverer of oxygen? The casual reader would not credit such a statement from one who August 1, 1774, introduced to the civilized world so important an element as oxygen. Because he did not know the "common processes" of chemistry and had not concerned himself with the "common routine" of it, led to his blazing the way among chemical compounds in his own fashion.

Many times since the days of Priestley real researchers after truth have proceeded without compa.s.s and uncovered most astonishing and remarkable results. They had the genuine research spirit and were driven forward by it. Priestley knew little of the labyrinth of a.n.a.lysis and cared less; indeed, he possessed little beyond an insatiable desire to unfold Nature's secrets.

Admiration for Priestley increases on hearing him descant on the people about him--on the natives--

Here every house-keeper has a garden, out of which he raises almost all he wants for his family. They all have cows, and many have horses, the keeping of which costs them little or nothing in the summer, for they ramble with bells on their necks in the woods, and come home at night. Almost all the fresh meat they have is salted in the autumn, and a fish called _shads_ in the spring.

This salt shad they eat at breakfast, with their tea and coffee, and also at night. We, however, have not yet laid aside our English customs, and having made great exertion to get fresh meat, it will soon come into general use.

Proudly must he have said--

My youngest son, Harry, works as hard as any farmer in the country and is as attentive to his farm, though he is only eighteen....

Two or three hours I always work in the fields along with my son....

And, then as a supplement, for it was resting heavily on his mind, he added--

What I chiefly attend to now is my Church History ... but I make some experiments every day (July 12, 1795), and shall soon draw up a paper for the Philosophical Society at Philadelphia.

Early in December of 1795 he entrusted a paper, intended for the American Philosophical Society to the keeping of Dr. Young, a gentleman from Northumberland en route for Europe. Acquainting his friend Lindsey of this fact, he took occasion to add--

I have much more to do in my laboratory, but I am under the necessity of shutting up for the winter, as the frost will make it impossible to keep my water fit for use, without such provision as I cannot make, till I get my own laboratory prepared on purpose, when I hope to be able to work alike, winter and summer.