Longacre submitted two designs to Pettit, and before the latter died on May 31, 1853, he selected one of the two; relief models quickly followed the approval.
22.
This was an ideal method of reproducing sculptors small bas-relief models ( it was only the size of the tank that limited the size of the object to be replicated ).
23.
Uniquely, Clark's portrait of The Queen was created using computer-aided design software to turn his initial sketches into the required low-relief model, with no manual sculpting being used at all.
24.
Troye was the pupil or ( assistant ) of the geologist and chemist Charles-Fran�ois Exchaquet, who made the first accurate relief models ( in wood ) of the Mont Blanc chain, a part of Valais and the St . Gotthard group.
25.
The 340-acre ( 1.4 km?) site included a 122 by 60 ft ( 37 by 18 m ) relief model of the Panama Canal, a wild animal show, a Wild West show, and a re-creation of the then-recent Civil War.
26.
Among the special work done by him during that period was the construction of a relief model of the basin of the Gulf of Mexico ( for which he suggested the name of the " Bay of North America " ), and the publication of a memoir on the same, published in the American Journal of Science.
