|"Symbolic Animals of Perugia and Spoleto"|
|Milton S. Garver|
| in 32:181 (April)The Burlington Magazine for Connoisseurs, 1918, 152, 156-160
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A description of two medieval Italian churches, S. Pietro in Spoleto and S. Costanza in Perugia, which have animal carvings on their fašades. The author sees the images as both decorative and symbolic.