Artificial womb-like protective environment, the couveuse, developed by Etienne Stephane Tarnier for premature babies.
Infant could be accessed through door (P).
Infant could be viewed through movable glass cover (d).
Space (K) filled with sawdust to insulate the cubicle.
Heater (Th) raised water (W) temperature.
Ventilating air (L) was warmed as it flowed around water reservoir before entering infant cubicle.
https://eee.uci.edu/clients/bjbecker/NatureandArtifice/lecture18.html
