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Nickel deposits near Mount Vernon, Skagit County, Washington
No abstract available.
Authors
S. W. Hobbs, W. T. Pecora
Nickel deposits near Riddle, Douglas County, Oregon
No abstract available.
Authors
W. T. Pecora, S. W. Hobbs
Nickel-gold deposit near Mount Vernon, Skagit County, Washington
No abstract available.
Authors
S. W. Hobbs, W. T. Pecora
Notes on Costia Necatrix
Costiasis, or the disease produced by the flagellated protozoan ectoparasite, Costia necatrix, is of considerable importance in the artificial propagation of both warm- and cold-water fishes. In spite of its importance, costiasis seldom is accurately diagnosed probably because of the extremely small size and sedentary nature of the causative organism. A general resume of the specific diagnostic ch
Authors
F. F. Fish
Occurrence and origin of the titanium deposits of Nelson and Amherst Counties, Virginia
No abstract available.
Authors
C. S. Ross
Ore deposits in the vicinity of the London fault of Colorado
No abstract available.
Authors
Quentin Dreyer Singewald, Bert Sylvenus Butler
Pre-Cambrian geology and mineral resources of the Delaware Water Gap and Easton quadrangles, New Jersey and Pennsylvania
No abstract available.
Authors
William Shirley Bayley
Preliminary report on the geology of the Coalmont district, Jackson County, Colorado
No abstract available.
Authors
C. E. Erdmann