La navigation aérienne;
A French technical survey of airships and aeroplanes by Philippe Hettinger, published in Paris by A. Quillet in 1910 for readers following early aviation. The plates are folding engineering drawings in brown line with pale yellow and green washes: biplane wing trusses, dirigible envelopes with suspended gondolas, engine mounts, propellers, and dashed rigging lines usable as diagrammatic ornament.
