APPENDIX.

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The law of patent recognizes, the intentions of inventors;and protects the means by which those intentions, are tobe realized. Now, in the discovery, or invention of a newarchitecture, it is almost impossible, but that there shouldbe several intentions. The law, however is satisfied withone ; and does not inquire whether that intention is primaryor secondary ; so that it is proved to be an intention, on thepart of the inventor.

The systematic production of certain optical effects, oc-casioned by the projection of the shadows of forms, or themodification of such shadows of the various extraneous ordecorative parts or features of houses or other buildings, onother forms or parts, planes or surfaces of the same— is theintention which the law in this instance protects.

Now, altho’ it may be, that effects, of a somewhat similarnature are occasionally observable,, in some of the pasts, of .pre-existent architectures, as fcrc example, (3±l2> one of rare • •occurrence) from the perforated flyingbuttregse&of the gothic;or from the balustrades or cotnmns of-the* classic, 'r- yet tlieproduction of uniform, and systematic optical effects, of thecharacter previously referred to, is evidently not an inten-tion of any known, or commonly practised style, or systemof architecture: and this is fully proved by the fact, of allthe decorations and details of the existent architectures,being executed in relievo ; or carved out on the surface ofa block; or moulded to produce a similar effect:—and, con-sequently the outlines and forms of parts, decorations,

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