42 TAXIDERMY AND MODELLING 



preparations, the aluril must be dispensed with, and in this case 

 the bay salt is doubled upon the ist Fluid, and more salt 

 should be added for marine animals. 



Mr. Lee gives Owen's Fluid with the remark that it is 

 " said to be very useful for the preservation of soft-bodied 

 animals," but Lo Bianco (p. 440) expressly states that this and 

 also Goadby's Fluids are of no avail for the preservation of 

 gelatinous organisms, shrinking and deforming them completely, 

 and, although Goadby's Fluids are universally quoted for general 

 preservative purposes, yet they have always appeared to the 

 writer to be more suited for the preservation of certain plants 

 and some lowly organisms. 



24. — Bichloride of Mercury and Alum (Boitard, p. 49). For Small 



Mammals. 



Bichloride of mercury . . .12 grammes 



Alum . . . . 100 „ 



Common salt . . 115,, 



Rain-water . . . . i litre 



The following, it will be seen, is a modification of the above 

 (Trois, cf Packard, ex. Riley, Directions for Collecting and Pre- 

 serving Insects, p. 94, 1892, Report, Smithsonian Institution). 



25. — Preservative for Larvae 



Bichloride of mercury . . .18 centigrammes 



Alum . . . . -55 grammes 



Common salt '^' '. . . . 2.35 „ 



Water (boiling) . . . S litres 



Allow the liquid to cool and add 50 grains of carbolic acid, and filter 

 after standing five or six days. 



In all of the foregoing the difficulty of getting bichloride of 

 mercury to dissolve in water is apparently underestimated, and 

 although it is also remarkably difficult of solution even in 

 absolute alcohol, it readily yields to a saturated solution of sal 



