Se Se et 
Mineralogy and Geology. 357 
_ by chemical action,” giving as reasons the position and constitution of 
the material, the nature of the adjoining rocks, and the fact that “ sprirgs 
containing oil are not uncommon throughout the district in which the 
: ” 
Albertite is found, 
6. On Devonian Insects from New Brunswick ; by S. H. Scuppzr, 
: (From a communication addressed by Mr. Scudder to Dr. C. F. Hartt, 
of New Brunswick, dated, Boston Society of Natural History, Janua 
- 11, 1865.)—I,have made as careful an examination as my present cir- 
selves to attract and merit our closest attention. . 
One of them is a gigantic representative of the family of Ephemerina 
among Neuroptera, some three or four times the size of the largest spe- 
Neuroptera, exhibiting to our view a synthetic type which combines in 
she the Pseudoneuroptera and the Neuroptera, and represents a family 
distinct from any hitherto known. 
_ Other fossil insects, found in Carboniferous concretions in Illinois, and 
i i fessor Da as 
Kind! allowed me to evamine,’ also belong to hitherto unrecognized 
families, exhibiting similar relations to sections of Neuropterous insec 
Mour day disconnected; and your third species is a member of still 
aother family of Neuroptera, which finds its natural relations between 
mire described by Professor Dana. 
gests no iutimate relations 
2 most irregular and unusual manner, suggests 
ged to a group of large and 
u 
with any known family, but must have belon 
Weak-winged insects. 
n tym- 
Pahum or stridulating apparatus of the male in the Orthopterous family 
Locustarice (though differing somewhat from that), it also most resemb es 
the Neuroptera in all, or nearly all, the other peculiarities of its struc- 
ture, and suggests the presence in the insect-fauna 0 those ancient times 
Am. Jour. Scl.—Seconp Srrims, Vou. XXXIX, No. 117.—May, 1865. 
46 ; 
