1853.] 313. 
TROGLODYTES LUDOVICIANUS, Bonap. 
I met a single wren of this species, July Sth, 1852. Wndoubtedly nests 
sparingly in the southern part of the State. Rare. 
REGULUS CALENDULA, Linn. 
Abundant spring and fall. 
Recutus satrapa, Lichst. 
Abundant. Arrives ist of April, and remains until May 10th. 
Sratia Witrsonrt, Swarns. ; 
The first arrival of this harbinger of spring at Racine, was— 
In 1846, : » March 25th. 
co 1847, ° . CG Ola. 
SHSM Mua Glan Mocs’ oy th: 
CMTGLOM yi Vem da eet ath. 
SIS SOW WAIL wit, VoaieCh wis 1st: 
SCO So, : : 6G Syd aG 
CSOSd25 : : CG NPN. 
nn 
, (To be continued.) 
The Committee on Dr. Heermann’s “Catalogue of the Oological 
Collection in the Academy of Natural Sciences of Philadelphia,” 
reported in favor of publication in the Proceedings. (IG™ See end of 
this number.) 
The Committee on Lieut. Maury’s communication, containing his 
observations on atmospheric pressure, reported as follows : 
Lieut. M. F. Maury, through Dr. Le Conte, the Corresponding Secretary, 
presented an engraved diagram, representing a ‘‘ vertical section of the basin 
of the Atlantic,’’ about the parallels of 39° and 40° north latitude, the data for 
which drawing are furnished by the deep sea soundings, taken by officers of the 
U.S. Navy, in obedience to an order from the Navy Department. Lieut. 
Maury says, * These data are not very abundant, but such as they are they 
give a proximate idea as to the submarine depression.”” 
The diagram exhibits a striking contrast between the profile of the earth’s 
crust above and below the sea level. — 
The same plate represents a vertical section across the continent of South 
America from Lima, on the Pacific, to the mouth of the Amazon under the 
equator, on the Atlantic. 
The object of this part of the engraving is to illustrate certain anomalies in 
the pressure of the atmosphere, as inferred from the experiments of Lieut. 
Herndon, U.S. Navy, on the boiling point of water, during his recent journey 
across that section of the continent. The following extract from a table 
shows the boiling points at several places on the route, and their eleva- 
tions above the sea respectively : 
