Compare 14 imagined Martian landscapes, buildings, flying devices and plants from two historical books, including the visions attributed to Hélène Smith.

A small boat crosses the foreground below a hill crowned by an elaborate palace.
From India to the Planet Mars: A Study of a Case of Somnambulism with Glossolalia
A bridge cuts across a stylised landscape above three separate botanical-looking designs.
From India to the Planet Mars: A Study of a Case of Somnambulism with Glossolalia
A rectangular house stands above a second view of a waterside settlement crowded with turrets and ornamental pinnacles.
From India to the Planet Mars: A Study of a Case of Somnambulism with Glossolalia
A long-tailed creature fills the upper drawing while a robed man and a hanging lamp occupy the lower panel.
From India to the Planet Mars: A Study of a Case of Somnambulism with Glossolalia
A narrow mechanical device projects a wide fan of fine marks in the upper drawing.
From India to the Planet Mars: A Study of a Case of Somnambulism with Glossolalia
Thin stems branch above a broad fan of long pointed leaves.
Journeys to the Planet Mars; or, Our Mission to Ento
A low fan of long leaves supports many branching stems of buds and small flowers.
Journeys to the Planet Mars; or, Our Mission to Ento
Long stems radiate from a single centre towards pointed leaves and small clustered flowers.
Journeys to the Planet Mars; or, Our Mission to Ento
A tall central flower rises above a radial cluster of spear-shaped leaves.
Journeys to the Planet Mars; or, Our Mission to Ento
Thin stems carry open star-shaped blooms above a dense cluster of round leaves.
Journeys to the Planet Mars; or, Our Mission to Ento
A heavy rounded flowerhead bends above serrated leaves and several smaller buds.
Journeys to the Planet Mars; or, Our Mission to Ento
Small open flowers spread along a tall branching stem above a radial base of leaves.
Journeys to the Planet Mars; or, Our Mission to Ento
A compact clump of stems carries round open flowers beside closed buds.
Journeys to the Planet Mars; or, Our Mission to Ento
A broad flower of overlapping pointed petals fills the centre of a low spreading plant.
Journeys to the Planet Mars; or, Our Mission to Ento