Periodic factsheet reporting on the level of algae bloom in Lake Erie, particularl harmful Microcystis cyanobacteria. It Includes an overview and graphs comparing the levels to previous measures.

"This appendix contains phase arrival information for local and near-regional events which have been well recorded by the Anna Seismic Network." (p. B1)

"The means of increasing the number of birds about our homes are few and simple. They comprise adequate protection and the provision of suitable nesting places, food, and water.... This bulletin [recommends] practicable methods of attracting birds about homes [in the northeastern United States]. Especial attention will be given to the value of fruit-bearing shrubs and trees." -- title page. Protection for birds, winter feeding, water supplies, and nesting boxes and birdhouses are also discussed.

Report discussing an international conference on mine-experiment stations assembling in Pittsburgh, Pennsylvania. The United States sent invitations to countries that had mine-experiment stations, Great Britain and Canada were the only countries, that did not accept invitation.