APPENDIX. 205 
Duray. On the Phosphorescence of Diamonds, ete. : Mémoires 
de Vl Acad. de Paris, 1730, and id. 1735. According to this 
author, yellow diamonds are more apt to become phosphores- 
cent than those of other tints. 
Witson. Influence of the different rays of the Solar Spectrum 
on Phosphoric Light : Journ. de Physique, t. xv. p. 92. 
Beccaria. De quamplurimis Phosphoris, etc. (Bologna, 1744), 
and on luminous clouds, ete., quoted by Arago in the Annuaire 
for the year 1838. 
VIANELLI. Nuove Scoperte intorno le Luci notturne dell Acqua 
Marina. (Venezia, 1749.) 
GRIXELLINI. On the Luminous Scolopendra. (Venice, 1750.) 
I am not acquainted with this work. 
Canton. On his Phosphorus, in Phil. Trans., 1768. 
Wepewoop (Thomas). ‘“ Experiments and Observations on the 
Production of Light from different bodies by Heat and by 
Attrition :” Phil. Trans., 1792. 
Hutme, Exp. on the Light which is spontaneously emitted 
from various bodies, and on Solar Light: PAi. Trans., 1802. 
In this remarkable paper Dr. Hulme states, “ that solar light, 
when imbibed by Canton’s Phosphorus, is subject to the same 
laws with respect to heat and cold as the spontaneous light of 
fishes, rotten wood, and glowworms.” 
Viviant. Phosphorentia Maris, etc. (Genoa, 1805.) 
DESSAIGNES. Papers on Phosphorescence, in Mémoires de ?A- 
eadémie de Paris, 1807, 1808. 
Prarsat. ‘On Phosphorescence by Heat,” ete.: Ann. de Chim. 
2nd series, t. xlix. pp. 337, 346. “ Electricity and Phospho- 
rescence :” Journ. of the Royal Institution, vol. i. 
Brewster. “On Phosphorescence by Heat :” Edin. Phil. Mag. 
i. 383. 
Herrick (Placidus). “On Phosphorescence after Insolation 
and by Heat :” Journ. de Phys. \xxi. 307. 
SrEBecK. “Exp. on Phosphorescence :” 
? Acad. des Se. de Paris, t. xiv. 
Groruts. “Exp. on Phosphorescence:”? Schweiger’s Journal, 
xiv. p. 134, 
Comptes-Rendus de 
