144 Scientific Intelligence. 
gems scons anything at all kindred to this remarkable developement. 
Nature has been so lavish in these states, that althongh the greater and 
some peculiar form pertaining to each. Unfortunately the existing 
troubles in the South have cut off these investigations, and until peace 
shall return to open again scientific correspondence, the prosecution of 
these researches will abies remain interrupted.” 
“Tn the introduction to my last volume, I enumerated the species of the 
family Unionide described to that time as inhabiting the United States. 
The number was then in the United States 550; in other parts of North 
America, 38. Up to this time we have in the United States, 607; 
which are thus divided; Unio, 520; Margaritana, 28; Anodonta, 59. 
To these may be added for the remaining part of North America, 39 
species; making —_- 646 species of the family now known.” 
“Texas has been — very slightly examined, and its branching 
streams, aiden d the soil in every direction, must be productive of riches 
lusks, which will fully reward the labor of the naturalist. 
A large oe of Louisiana, Mississippi and Alabama _ not been ex- 
tr memoirs by the same author are now in process of publication 
yeh of which have Appeared in the Proceedings of the Academy: 
eh are as foll lows; 1. pee of a new genus hg 
two new epi of exotic Uniones and one ioe ondy lon a Dest 
tion of a new genus, Goniobasis of the family Melanider and eighty-two 
species. 5. Description of eleven new species of Melanide of the uate 
States. e have been permitted to examine five plates of Mr. 
forthcoming Memoirs on the Melanide, upon which are figured 299 
species. This will be noticed more fully hereafter. 
VII. ASTRONOMY AND METEOROLOGY. 
1. Re-discovery of Daphne, Asteroid (41).—It has been stated in this 
Journal, vol. xxxii, p. 438, that Daphne was discovered at Paris, May 22; 
1856 ; but the reliable observations only embraced an interval of four days; 
and the are described in this interval was but little more than one de 
gree. Any orbit computed from these observations must of course be 
liable to considerable uncertainty. 
On the 9th of September, 1857, M. Goldschmidt of Paris discovered 4 
small pienet near the position which had been computed for Daphne, 
an several months no doubt was entertained that this Baber was 
really Teshen: but on making a careful computation, M. Schubert 
covered that the same orbit could not be ng to represent both series of 
observations. He therefore concluded that the planet discovered Sept. 9 a 
57, - a new planet; and it ce TA aeeally the name 
Pseudo-Daphne. 
At the next opposition which should eee occurred in December, ge 
neither Daphne nor Pseudo-Daphne could be found; and at the 
cveding opposition in March, 1860, astronomers were equally aaa 
