All of its interior ichthyological features might have been anticipated even at the threshold of the building, with its rich and effective portals, where so many of these very forms are seen petrified in surface ornament. The building is in the form of a rectangular central structure with two octagonal annexes, each with its own beautiful portal, and connected to the main edifice by curved colonnades, with arch and balustrade--portal and pillar, capital, entablature and arch and panel--everywhere sculptured with ornaments whose themes are drawn from the subaqueous life to which the building is dedicated. The very balcony upon which we lean is supported by columns composed of four ingeniously and gracefully interlocked dolphins, while the pillars on right and left and throughout the entire exterior suggest curious geometric fossils from the deeps. Here a spiral procession of huge toads, whose uncouth shapes thus embodied in conventional ornament are singularly agreeable and effective. Each successive pillar is a study alike for the naturalist or designer--here a sinuous procession of river-horses (hippocampus), the incurved tail forming a volute repeated with pleasant effect in the spiral bands of ornament. Accommodating star-fishes embrace their respective pillars, touching points in geometric design. Here are eels and fishes meandering among bulrushes and arrowheads. Lizards, crabs, and turtles, each combine in effective ornament about their particular columns, which are surmounted by capitals of even greater ingenuity and effectiveness of design, perhaps because less geometric. Gaping frogs leaping among water-weeds; lobsters captive and sprawling in their wicker “pots;” fishes entangled in the meshes of nets, or engaged in mortal combat, their gaping mouths finely utilized in effective points of shadow--the modelling of each and all suggests the perfection of a cast from nature. To those who look for a happy blending of architectural purpose and harmonious ornament, this building will be a welcome innovation. To the naturalist or the idler in quest of the mere picturesque, the Fisheries Building with its wandering façade and colonnade, its roof of ruddy tiles and almost Moresque richness of surface ornament in high relief, will be found well worth careful study. How many are the obvious natural themes yet awaiting their sculptured memorial in the temple of architecture. Must the classical and testy acanthus [Illustration: ELKHORN FERN, A SUGGESTION FOR AN ARCHITECT--IN THE AUSTRALIAN EXHIBIT, HORTICULTURAL HALL.]