3 public-domain matches

Spiral Vortex

Cover of High Speed Flows

High Speed Flows

Unknown author

Cover of Researches in Vortex Motion. Part III. On Spiral or Gyrostatic Vortex Aggregates.

Researches in Vortex Motion. Part III. On Spiral or Gyrostatic Vortex Aggregates.

W. Hicks

Cover of Researches in Vortex Motion. Part III. On Spiral or Gyrostatic Vortex Aggregates.

Researches in Vortex Motion. Part III. On Spiral or Gyrostatic Vortex Aggregates.

W. M. Hicks