CHAPTER V. 



MISCELLANEOUS COLLECTIONS. 



SECTION I. Crustacea. - - But few of these interesting 

 objects of natural history live away from the salt water. 

 The Crawfishes and a few others form the exceptions to 

 the rule. All Lobsters, Crabs, Shrimps, and Crawfishes 

 may be preserved dry. Wash them in fresh water, and, 

 if the specimen is large, remove the flesh as much as 

 possible by lifting the shield, or upper part of the shell. 

 The specimens should be placed in as natural an attitude 

 as possible to dry. When dry they should be handled 

 with care, as they break easily. If arsenic is put into the 

 body, it will help to preserve it and keep away noxious 

 insects. 



Small Crabs, Shrimps, etc. should be injected with car- 

 bolic acid and dried carefully. Never place a specimen in 

 the sun to dry, but always in a draught of air in the shade. 

 A great many kinds of Shrimps or Sand-Fleas may be col- 

 lected from under sea-weeds on sandy beaches. 



Collecting Mollusks. - Many shells may be collected 

 on the sea-shore among the rocks at low tide. Some 

 of the more minute species may be found clinging to the 

 sea-weed that grows on the rocks. These require delicate 

 manipulation, as they are very fragile ; they are best re- 

 moved with the tweezers, and should be placed in wide- 

 mouthed bottles containing alcohol. Some species of cone- 

 shaped, univalve shells may be found clinging closely to 

 the rocks. They should be seized suddenly with the hand, 

 and, before the animal has time to contract itself, - - which 

 it will do very quickly, and then it adheres so closely as 



