In the Sympathia Septem Metallorum ac Septem Selectorum Lapidum ad Planetus, by the noted Peter Arlensis de Scudalupis, the following are the stones and metals which are recorded as sympathising with what the ancients termed the seven planets (I translate the original words):
| Saturn | Turquoise. | Lead. |
| Jupiter | Cornelian. | Tin. |
| Mars | Emerald. | Iron. |
| Sun | Diamond. | Gold. |
| Venus | Amethyst. | Copper. |
| Mercury | Loadstone. | Quicksilver. |
| Moon | Chrystal. | Silver. |
N. D. inquires in what works he will find the emblematical meanings of precious stones described. For a great deal of curious, but obsolete and useless, reading on the mystical and occult properties of precious stones, I may refer him to the following works:—Les Amours et noveaux Eschanges des Pierres Précieuses, Paris, 1576; Curiositez inouyes sur la Sculpture Talismanique, Paris, 1637; Occulta Naturæ Miracula, Antwerp, 1567; Speculum Lapidi, Aug. Vind., 1523; Les Œuvres de Jean Belot, Rouen, 1569.
W. Pinkerton.
NON-RECURRING DISEASES.
(Vol. viii., p. 516.)
To give a full and satisfactory answer to the questions here proposed would involve so much professional and physiological detail, as would be unsuited to the character of such a publication as "N. & Q." I will therefore content myself with short categorical replies, agreeable to the present state of our knowledge of these mysteries of the animal economy. It is true as a general rule that the infectious diseases, particularly the exanthemata, or those attended by eruption—the measles for example—occur but once. But there are exceptional cases, and the most virulent of these non-recurrent diseases, such even as small-pox, are sometimes taken a second time, and are then sometimes, though by no means always, fatal.
Why all the mammalia (for, be it observed, these diseases are not confined to the human race) are subject to these accidents, or why the animal economy should be subject to such a turmoil at all, or, being so subject, why the susceptibility to the recurrence of the morbid action should exist, or be revived in some and not in others; and why in the majority of persons it should be extinguished at once and for ever, remain amongst the arcana of Nature, to which, as yet, the physiology of all the Hunters, and the animal chemistry of all the Liebigs, give no solution.