His ideas and experiments on the nature of minerals and other substances are voluminously set forth in his Physica Subterranea (Frankfort, 1669); an edition of this, published at Leipzig in 1703, contains two supplements (Experimentum chymicum novum and Demonstratio Philosophica), proving the truth and possibility of transmuting metals, Experimentum novum ac curiosum de minera arenaria perpetua, the paper on timepieces already mentioned and also Specimen Becherianum, a summary of his doctrines by Stahl, who in the preface acknowledges indebtedness to him in the words Becheriana sunt quae profero.
Xerophytes.Plants which grow in very dry soils; e.g., most hens, Ammophila (Psamma) arenaria, Elymus arenarius, Anasis aretioides, Zilla macro ptera, Sedum acre, Bupleurum spinosum, rtemisia herba-alba, Zollikofferia arborescens.
Thus, associ- 1~e] ions of Agropyrum (Triticum) junceum, of Carex arenaria, of ~ ~nmophila (Psamma) arenaria, and of other plants occur on sa rid dunes: the associations are related by the general identity ph the habitat conditions, namely, the physiological dryness f d the loose soil; but they are separated by differences in f~1
The ociational term, in the genitive, may be added to the forma- a~ nal term to indicate the relationship of the formation and the for iociation; thus, a plant association of A mmophila arenaria lea onging to the plant formation of the sand dunes may be pl;ignated an Arenarion Ammo philae-arenaricie (cf.
As a rule also the catacombs had 111 more than one entrance, and frequently communicated with an arenaria or sand-quarry; so that while one entrance was carefully watched, the pursued might escape in a totally different direction by another.
The distinction between the two is also plainly exhibited when for some local or private reasons an ancient arenaria has been transformed into a cemetery.
- Arenaria beneath the Cemetery of Calixtus.
Next to the Dunlin and Knot the commonest British Tringinae are the Sanderling, Calidris arenaria (distinguished from every other bird of the group by wanting a hind toe), the Purple Sandpiper, T.
On islands of rock above the snow-line - they attain to an equality with the endemic forms. As examples of northern flowers which are characteristic of the snow-region, we may mention Silene acaulis, Eritrichium nanum and Arenaria ciliata.
The tendency of the dunes to drift off on the landward side is prevented by the planting of bent-grass (Arundo arenaria), whose long roots serve to bind the sand together.
The most common plant here is the stiff sand-reed (Arundo arenaria), called sand-oats in Drente and Overysel, where it is much used for making mats.
Carex arenaria, the sea-bent, grows on sand-dunes and helps to bind the sand FIG.
Instead, the soft clam, Mya arenaria, a Lamellibranch not used by English or Norwegian fishermen, though abundant on their shores, is employed as bait by the fishermen to the extent of 14 million bushels per annum, valued at £120,000.
Ammophila arundinacea (or Psamma arenaria) (Marram grass) with its long creeping stems forms a useful sand-binder on the coasts of Europe, North Africa and the Atlantic states of America.