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the lowest tide mark, and on stones in the crab-pots, and Laminaria roots, 

 from which also may be obtained rosea, miniata, nivea, &c. Cut the root 

 up, or tear it to pieces, they will be found inside ; Bellis is in narrow chinks 

 in rock ; it must be chiselled off, unless the rock be slaty and can be split ; 

 clavata is chiefly found at "Weymouth, and must be chiselled off very 

 hard flat rock. Corynactus must be brought home with the rock it is on, not 

 detached ; Dianthus ( Plumosa) comes from deepish water, on the southern 

 coast, but is found plentifully in the Sark caves. All these live well in the 

 aquarium without constant aeration of the water. Crassicornis and Anthea 

 cerens are easily obtained in pools, or the former in sand, but do not live 

 well without aeration ; the same is true of parasitica (found by dredging), 

 Adamsia, &c. 



To prepare hydrozoa and polyzoa, &c, with extended tentacles, osmic 

 acid is a favourite process, and it gives good results, but it stains 

 too much. Tbe objects should be got in good condition, placed in a 

 watch glass, and syringed freely, and then placed under a low pow r er 

 of the microscope and watched until the tentacles are well extended, then 

 with a fine pipette run a small drop of spirit down the side of the watch 

 glass, not on the polype. The creature will probably withdraw its tentacles. 

 If so leave it alone until they expand again, without disturbing it run 

 another drop down the glass. After doing this once or twice the creature 

 gets dull and heavy, drunk in fact, and then spirit may be added freely 

 and the polype mounted. That raises the serious question in what medium 

 to mount it. Spirit and water gives very good results, possibly tbe best on 

 the whole, but Goaclby's solution preserves the creatures in more natural 

 form and keeps the sarcode harder, presenting a more life-like appearance ; 

 but it is open to the objection that it contains corrosive sublimate, which 

 produces a certain amount of discoloration of the creature after a 

 time. 



[A slide, which had been prepared in this way for two years, was placed 

 on the table] ; this showed a certain darkening of colour which would pro- 

 bably increase. Another objection is that Goadby's solution had a tendency 

 to cast a sediment. For that reason it should be used weaker than the book 

 strength, adding about three times the quantity of distilled water. Sea- 

 weeds are best mounted in pure glycerine, Annelids in glycerine or Goadby's 

 solution, Echinoderins in balsam. 



The speaker now said that he had been requested finally to touch upon two 

 subjects not connected with shore collecting. With reference to getting 

 creatures, such as insects, acari, &c, in the best condition to mount, he had 

 been asked if he bred them for this purpose. He did so occasionally. 

 Many objects, such as the antennas of the male gnat, could be got in the 

 best condition by placing a piece of gauze over a water butt. Breeding may 

 be advantageous when pupae can be obtained in a late stage, or when a rare 

 larva is found. But it is extremely difficult to imitate the whole natural 

 conditions for any length of time, the creature is not strong and vigorous ; 

 and though the hairs and setse are less injured, it does not necessarily make 

 a better mount than a hardier well developed creature bred in a natural state, 



