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 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 1

Two trochoided plane boat propellers, also two models of floats propelled by the waves.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 2

A double vessel in which the boats themselves are the propeller.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 3

Trochoided Plane anemometer on a windmill.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 4

Two models showing trochoidal actions of fish swimming.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 5

A model of trochoidal action of many footed progression and another model of trochoidal action demonstrating how to float and propel itself in water.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 6

A Model showing six footed trochoidal progression and gravitational horizontal rudder for a flying machine.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 7

Model showing one form of serpentine progression.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 8

8 small India rubber-driven flying machines.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 9

Small clockwork flying machines on a tricycle.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 10

24 band flying machine A, similar to that described in Royal Society paper from 2nd December 1885.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 11

24 band flying machine C. This was described in a paper published on 1st June 1887.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 12

24 band flying machine. H. J. K. observations, 7th December 1887.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 13

A 24 band flying machine.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 14

An 8 band flying machine.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 15

A 48 band flying machine. An enlargement of this machine is shown on page 16 of Hargrave's Evolution of the flying machine I.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 16

An enlargement of a 48 band flying machine. The fuller version is shown on page 15 of Hargrave's Evolution of the flying machine I.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 18

Large machine on wheels. Described on 1st June 1887.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 19

First compressed air engine and indicator.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 20

Rough chronographic apparatus with three cylinder screw eninge attached.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 21

Bow and stern screw flying machine.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 22

48 band stern screw flying machine. Described on 7th Augist 1889.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 23

An engine for patroleum spirit vapour.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 24

Section of a flying machine strut that has stood a crushing strain of 360 pounds. The strut was originally 6 feet 2 inches and had three bulkheads 18 inches apart.

 Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889) Image 25

A three cylinder screw engine.