236 
Instructions to the 
tion of much useful matter which might otherwise escape recol¬ 
lection will be secured, and a valuable document formed for 
future reference. 
In conclusion, the Council most particularly recommend 
that the Botanist to the expedition be directed to number all 
the objects collected by him in one consecutive series; that the 
dried specimens, seeds, woods, and productions of all kinds, 
shall correspond in number with the plants producing them; 
and that two complete collections be prepared for Government, 
of which one shall be for incorporation with the general collec¬ 
tions belonging to the Public, and the other be preserved sepa¬ 
rately, to illustrate the botany, &c. of the expedition. The 
Council also recommend that both these collections be delivered 
up within six months after the return of the expedition ; and, 
finally, that a report upon the botanical results of the expedi¬ 
tion be furnished to Government within six months after its 
return, every plant or object mentioned in the report bearing 
the number of the specimens in the collections to be delivered 
up as above recommended. 
Section IV.—ZOOLOGY AND ANIMAL PHYSIOLOGY. 
1. Marine Invertebrata. 
The animals which it is desirable to preserve, and which may 
first present themselves to the notice of the naturalist in the 
present expedition, are the floating marine Mollusca and 
Crustacea , and those which inhabit the Sargazzo or Gulph- 
weed. 
With respect to the Mollusca , all the species of the Cephalo¬ 
poda or Cuttle-fish tribe, and all the Pteropodu, or lower 
organized floating Mollusca, should be preserved. If taken 
alive, they should be allowed to die gradually in sea water, by 
which means they commonly remain in a relaxed state, and 
display more of their natural outward form. When dead they 
should be soaked for a short time in fresh water, and then put 
into spirit; or if transparent, in the saline solution*, to prevent 
decomposition, which otherwise rapidly takes place. 
To each specimen should be attached a number, stamped on 
sheet tin, corresponding to the entry number in the Catalogue, 
in which should be noticed the kind of locomotion, or other 
vital phenomena, and the colour of the living animal, the latter 
being speedily altered or lost in the preserving liquor. The 
larger Crustacea will be liable to become putrid in spirit, unless 
the soft mass, which fills a large portion of the body, consisting 
of the liver, &c. be removed. Each specimen of this class, ex- 
* Common salt. 1 part. 
Alum. 2 parts. 
Boiling water.10 parts. 
Filter tlie solution when cold. 
