Sirius, or the Dog-star, is represented as in the above [engraving], on a garnet gem, in lord Besborough’s collection, etched by Worlidge. The late Mr. William Butler, in his Chronological Exercises, says, that on this day “commence, according to the almanacs, the Canicular, or Dog-days, which are a certain number of days preceding and following the heliacal rising of Canicula, or the Dog-star, in the morning. Their beginning is usually fixed in the calendars on the 3d of July, and their termination on the 11th of August; but this is a palpable mistake, since the heliacal rising of this star does not now take place, at least in our latitude, till near the latter end of August; and in five or six thousand years more, Canicula may chance to be charged with bringing frost and snow, as it will then, owing to the precession of the equinoxes, rise in November and December.”
Dr. Hutton remarks, that some authors say, from Hippocrates and Pliny, that the day this star first rises in the morning, the sea boils, wine turns sour, dogs begin to grow mad, the bile increases and irritates, and all animals grow languid; also, “the diseases it usually occasions in men are burning fevers, hysterics, and phrensies. The Romans sacrificed a brown dog every year to Canicula, at his first rising to appease his rage.”
A Cambridge contributor to the Every-Day Book affirms, that, in the year 1824, an edict was issued there for all persons keeping dogs either to muzzle or tie them up, and many a dog was tied up by the neck as a sacrifice; whether to the Mayor or Canicular, this deponent saith not; but the act and deed gave rise to the following
JEU D’ESPRIT.
Good mister Mayor
All dogs declare
The beam of justice falters!
To miss the puppies—sure she’s blind,
For dogs they are alone consign’d
To muzzles or to halters!
Cambridge,
T. N.
Mr. Brady observes, in his “Clavis Calendaria,” “That the weather in July and August is generally more sultry than at any other period of the year, and that some particular diseases are consequently at that time more to be dreaded, both to man and beast, is past dispute. The exaggerated effects of the rising of Sirius are now, however, known to be groundless; and the superior heat usually felt during the Dog-days has been more philosophically accounted for. The sun, at this period of the year, not only darts his rays almost perpendicularly upon us, and of course with greater power; but has also continued to exert his influence through the spring and summer seasons, whereby the atmosphere and earth have received a warmth, proportioned to the continuity of its action; and moisture, in itself naturally cold, has been dissipated. Even in the course of a day, which has been aptly typified as a short year, the greatest effect of the sun is generally felt at about two o’clock, although it has then passed the meridian, because by having so much longer exerted its powers, its consequent effects are more than commensurate for the diminution of heat in its rays. The cold of winter in like manner augments about the time the days begin to increase, and continues to do so, for a considerable time after, because, at that season, the earth has become wet and chilled, from the effects of the preceding gradual decrease of power in the sun, although, at that time, when the cold is usually most severe, that orb is ascensive, and returning from the winter solstice: and our Saxon ancestors were experimentally so well aware of this latter circumstance, that in the delineation on their calendars, to illustrate the characters of the months they represented February, as a man in the act of striking his arms across his body to warm himself: while there is also yet in common use a very old saying, grounded upon the like conviction, that ‘when the days lengthen, the frost is sure to strengthen.’
“The early Egyptians, whose hieroglyphical characters, aptly adapted by them to the peculiarity of their climate and circumstances, were the principal or perhaps sole origin of all the heathenish superstitions of other nations, were taught by long observation and experience, that as soon as a particular star became visible, the Nile would overflow its banks; and they accordingly upon its very first appearance retreated to their terraces, where they remained until the inundation had subsided. This star, therefore, was called by them Sihor, i. e. the Nile; as Σείριος is in Greek, and Sirius in Latin; and from the warning it afforded them, they typified it as a dog, or in most cases as a man with a dog’s head; that faithful animal having been, even in those times, distinguished for his peculiar qualities of watching over the affairs of man, and affording warning of approaching danger. The names assigned to this star by the Egyptians was Thaaut, or Tayout, the dog; and in later times Sothis, Thotes, or Thot, each bearing the like signification; but it was left for the subsequent ignorance of those other nations who adopted that character for Sihor, now Sirius, without considering the true origin of its appellation, falsely to assign to it, the increasing heat of the season, and its consequent effects upon animated nature. The idea, however, of any such effects, either as to heat, or to disorders, from the influence of the canicular star, is now wholly exploded, from the reasons already assigned, and because ‘that star not only varies in its rising every year, as the latitude varies, but that it rises later and later every year in all latitudes;’ so that when it rises in winter, which, by the way, cannot be for five or six thousand years, it might, with equal propriety, be charged with increasing the frost: and besides, it is to be observed, that although Sirius is the nearest to the earth of any of the fixed stars, it is computed to be at the enormous distance of 2,200,000,000,000 miles from our globe; a space too prodigious to admit of its rays affording any sensible heat: and which could not be passed by a cannon-ball, flying with its calculated velocity of 480 miles in one hour, in less than 523,211 years! Upon the whole, therefore, it evidently appears, that the origin of the name of this star was not only wholly disregarded, but that common and undigested opinion made its conjunction with the sun, the cause of heat, &c. instead of having regarded it as a sign of the period when such effects might naturally be expected.”