Astronomy and Meteorology. 281 
snout, and the presence of one or two rows of teeth in the upper jaw. 
For two of these groups, Rafinesque’s names of Cylindrosteus and Airac- 
tosteus have been adopted, although to Dr. Girard, the credit of first 
es, and the species must be consequently called Heterodontus francisci. 
= eg damia maculatus of Ayres is referred to the genus Heptan- 
us, Raf. 
? . 
Among the Rays, a second species of Muller and Henle’s genus Urap- 
is made known. 
Among the Cyclostomi we perceive that Dr. Girard has not only 
rtained the genus Ammococtes, but he has even separated from it a new 
pee 
dissent from the author in many cases, we most cheerfully bear witness to 
To the Smithsonian Institution, we are indebted for the accumulation 
of the materials which have been used in the elaboration of the report. 
i eral Government, it is 
of the valuable “contributions to knowledge” which we owe to the 
§ care of that Institution. T. @ 
IV. ASTRONOMY AND METEOROLOGY. 
Solar Eclipse of July 18, 1860.—From the numerous accounts which 
have Teached us . eh observations made upon this Eclipse we place 
* 
time), 1860, sail -B on the morning of 
ed from the Navy Yard at Brooklyn « 
the 28th of Tune last. The axpeditish had been organized by the accom- 
and energetic Superintendent of the U. S. Coast Survey, under 
* For LeVerrier’s account of the French Expedition, see Postscript, p. 309.. 
MM. JOUR. scL, SECOND SERIES, VoL. XXX, No. 89.—SEPT., 160. 
36 
