| The madrepore corals are called reef-builders, but not in the sense of constructors of reefs. |
| The madrepore stone is found among the fossil productions of Ashton. |
| Finally, as a last despairing effort, I took a pencil and began to make a sketch of a madrepore. |
| Constructions in madrepore resist rather well the seisms, frequent but with low intensities in the region. |
| It is in fact of the shape of a goblet, and its substance is intermediate between that of a sponge and a madrepore. |
| One need only glance at the photographs of osmotic productions to recognize the forms of madrepore, fungus, alga, and shell. |
