112 The American Geologist. August, 1902. 
priests decided was gold, and endeavoring to dip up the gold, 
lost their buckets, chains and two of their Indian assistants. 
1809. Cosaqucna active for a few days. 
1835. Cosaqnena in explosive activity blew off a large part of its cone ; 
ashes and cinders covered the houses and streets in the city 
of Mexico, 1200 miles distant, and pumice stones from it cov- 
ered the Pacific ocean for about 100 miles west from the vol- 
cano; a yet pulsating — opening and nearly closing fissure was 
opened on the western side deep enough, probably, to connect 
the water at present in its deep crater with the gulf of Fonseca. 
1844. Scries of earthquakes and eruptions from Cosaqnena, elevating 
the bed of a part of the Rio Negro in N. E. Nicaragua, and also 
a part of the bed of Rio Tipitape, north-west from Momotombo, 
that connects lakes Managua and Nicaragua, so that now the 
water flows in that part of the channels of those rivers only 
during high water in the rainy season. 
1841. Series of many days of severe earthquakes. 
1850. Formation of the volcanic cone "Pilas' at the northern foot of 
the extensive volcanic mass Mombacho on the western margin 
of lake Nicaragua: the city of Granada is just north of volcano 
Mombacho. 
1857. Mosaya in violent eruption — also at the same time volcano San 
Miquel in Salvador. 
1859. Masnya expelling streams of lava for a few days. 
1862. Earthquakes, very severe, for several days, in Nicaragua and 
Salvador. 
1865. Earthquakes numerous and severe in western Nicaragua for 
many days. 
1870. Earthquakes from volcano Masaya, accompanied for a few days, 
with loud "grating" also "roaring"' sounds. 
1870. Earthquakes from Momotombo of great force injuring many 
persons and destroying many houses in the city of Leon, accom- 
panied by very loud harsh sounds. 
3883. Oinctcpc. a volcanic island in lake Nicaragua for a few days 
accompanied by loud grating sounds, filling with fragments of 
rock and sand some of the ravines that had been cut by torrents 
of rain about forty feet deep down to a stratum on which 
aborigines made coarse styles of urns, pottery, etc : a finer_ kind 
and painted pottery, urns for burying the dead, etc., were made 
by Aztec or Choutal invaders, on a stratum nearer the earth's 
surface. 
1885. Earthquakes, destroying several lives and much property in cities 
of Leon and Chinendega, from Fiejo. 
1886. Momotonho in eruption; numerous earthquakes for many days. 
1891. Earthquakes, numerous daily for about forty days; most strongly 
felt in the city of Grenada, occasioned by a disturbance beneath 
lake Nicaragua and a few miles north of Ometepe : reported to 
American Geolo,^ist. 
