and has never hardened his front in publick life, or accustomed his passions to the vicissitudes and accidents, the triumphs and defeats of mixed conversation, will blush at the stare of petulant incredulity, . and suffer himself to be driven by a burst of laughter, from the fortresses of demonstration. The mechanist will be afraid to assert before hardy contradiction, the possibility of tearing down bulwarks with a , silk-worm's thread; and the astronomer of relating the rapidity of light, the distance of the fixed stars, and the height of the lunar mountains. If I could by any efforts have shaken off this cowardice, I had not sheltered myself under a borrowed name, nor applied to you for the means of communicating to the publick the theory of a garret; a subject which, except some slight and transient strictures, has been hitherto neglected by those who were best qualified to adorn it, either for want of leisure to prosecute the various researches in which a nice discussion must engage them, or because it requires such diversity of knowledge, and such extent of curiosity, as is scarcely to be found in any single intellect: or perhaps others foresaw the tumults which would be raised against them, and confined their knowledge to their own breasts, and abandoned prejudice and folly to the direction of chance. That the professors of literature generally reside in the highest stories, has been immemorially observed. The wisdom of the ancients was well acquainted with the intellectual advantages of an

elevated situation: why else were the Muses stationed on Olympus or Parnassus, by those who could with equal right have raised them bowers in the vale of Tempe, or erected their altars among the flexures of Meander? Why was Jove himself nursed upon a mountain? or why did the goddesses, when the prize of beauty was contested, try the cause upon the top of Ida? Such were the fictions by which the great masters of the earlier ages endeavoured to inculcate to posterity the importance. of a garret, which, though they had been long obscured by the negligence and ignorance of succeeding times, were well enforced by the celebrated symbol of Pythagoras, dysgåy ovedvowy roy #xo Tpooxövet; “when the wind blows, worship its echo.” This could not but be understood by his disciples as an inviolable injunction to live in a garret, which I have found frequently visited by the echo and the wind. Nor was the tradition wholly obliterated in the age of Augustus, for Tibullus evidently congratulates himself upon his garret, not without some allusion to the Pythagorean precept:

Quam juvat immites ventos audire cubantem
Aut, gelidas hibernus aquas quum fuderit Auster,
Securum somnos imbre juvante sequi / Lib. i. El. i. 45.

How sweet in sleep to pass the careless hours,
Lull'd by the beating winds and dashing show’rs!

And it is impossible not to discover the fondness

of Lucretius, an earlier writer, for a garret, in his

description of the lofty towers of serene learning,

and of the pleasure with which a wise man looks

down upon the confused and erratick state of the world moving below him:

Sed nil dulcius est, bene quam munita tenere
Edita doctrina Sapientum templa serena;
Despicere unde queas alios, passimque videre
Errare, atque viam palanteis quaerere vitae. Lib. ii. 7.

'Tis sweet thy lab’ring steps to guide To virtue's heights, with wisdom well supplied, And all the magazines of learning fortified: From thence to look below on human kind, Bewilder'd in the maze of life, and blind. DRYDEN. The institution has, indeed, continued to our own time; the garret is still the usual receptacle of the philosopher and poet; but this, like many ancient customs, is perpetuated only by an accidental imitation, without knowledge of the original reason for which it was established.

Causa latet; res est notissima.

The cause is secret, but th” effect is known. ADDIson.

Conjectures have, indeed, been advanced concerning these habitations of literature, but without much satisfaction to the judicious inquirer. Some have imagined, that the garret is generally chosen by the wits as most easily rented; and concluded that no man rejoices in his aérial abode, but on the days of payment. Others suspect, that a garret is . chiefly convenient, as it is remoter than any other part of the house from the outer door, which is often observed to be infested by visitants, who talk incessantly of beer, or linen, or a coat, and repeat the same sounds every morning, and sometimes again in the afternoon, without any variation, except

that they grow daily more importunate and clamorous, and raise their voices in time from mournful murmurs to raging vociferations. This eternal monotony is always detestable to a man whose chief pleasure is to enlarge his knowledge, and vary his ideas. Others talk of freedom from noise, and abstraction from common business or amusements; and some, yet more visionary, tell us, that the faculties are enlarged by open prospects, and that the fancy is at more liberty, when the eye ranges without confinement. These conveniences may perhaps all be found in a well-chosen garret; but surely they cannot be supposed sufficiently important to have operated unvariably upon different climates, distantages, and separate nations. Of an universal practice, there must still be presumed an universal cause, which, however recondite and abstruse, may be perhaps reserved to make me illustrious by its discovery, and you by its promulgation. It is universally known that the faculties of the mind are invigorated or weakened by the state of the body, and that the body is in a great measure regulated by the various compressions of the ambient element. The effects of the air in the production or cure of corporeal maladies have been acknowledged from the time of Hippocrates; but no man has yet sufficiently considered how far it may influence the operations of the genius, though every day affords instances of local understanding, of wits and reasoners, whose faculties are adapted to some single spot, and who, when they are removed to any other place, sink at once into silence and stupidity. I have discovered, by a long series of observations, that invention and elocution suffer great impediments from . dense and impure vapours, and that the tenuity of: a defecated air at a proper distance from the surface of the earth, accelerates the fancy, and sets at liberty those intellectual powers which were before shackled by too strong attraction, and unable to expand themselves under the pressure of a gross atmosphere. I have found dulness to quicken into sentiment in a thin ether, as water, though not very hot, boils in a receiver partly exhausted; and heads, in appearance empty, have teemed with notions upon rising ground, as the flaccid sides of a football would have swelled out into stiffness and extension. o For this reason I never think myself qualified to judge decisively of any man’s faculties, whom I have only known in one degree of elevation; but take some opportunity of attending him from the cellar to the garret, and try upon him all the various degrees of rarefaction and condensation, tension and laxity. If he is neither vivacious aloft, nor serious below, I then consider him as hopeless; but as it seldom happens, that I do not find the temper to which the texture of his brain is fitted, I accommodate him in time with a tube of mercury, first marking the points most favourable to his intellects, according to rules which I have long studied, and which I may, perhaps, reveal to mankind in a com

plete treatise of barometrical pneumatology. Vol. 3—3 33

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