202 General Notes. [ February, 
stone slabs, 53™™ thick, as a foundation. These he perforated 
with holes, and fastened the cuttings to them by wooden pegs 
driven into the holes; but it became evident that the mud and 
sand of the sea-bottom, perhaps also excess of light, were inimi- 
cal to further growth. Lattice frames having the form of floating 
- tables above, and with the sponges attached beneath, were tried. 
Professor O. Schmidt also suggested merely tying the cuttings to 
strong suitable strings. By the first plan there was too much 
shade; by the second, too much light. Buccich first constructed 
an apparatus composed of two planks crossing each other at right 
angles, with a third as a cover. This was so far successful that 
the cuttings were exposed on all sides to the sea, and assum 
the desirable round form. He then made a modification, consist 
ing of two boards 63°" by 40™; one forms the bottom an 
other the lid, and they are held parallel one over the other ata — 
distance of 42™ by two short stays, some 11™ apart. In the space 
between these stays stones can be placedas ballast. On the top 
of the cover isa handle. In both planks holes are bored at 127 
apart. Buccich fastened the cuttings not simply on the apparatus, 
but on sticks which were driven into the holes of both boards. — 
As material for the sticks, the common Spanish cane was used, 
whose siliceous rind is proof against the attacks of the pile-worm™ 
The sticks were 42™ long, and bored through at a distance of 
12™, the lower end being split. On each stick three sponge cute 
tings were fastened in such a manner that they should lie over the 
bore-holes; through these, wooden sticks were thrust, and each - 
cutting was thus fixed. : 
sg > ae i 
stick is filled with cuttings, its split end is thrust into one of th : 
niently let down and pulled up by coats of a small anchor. 7 
