INTRODUCTION. xH 



to preserve with all possible care, by putting the tender animals into spirit, and 

 preserving the larger ones dry, such as the skins of animals, insects, shells, 

 fishes, and other bulky articles, which, when well dried, he is to pack in casks or 

 boxes, so as to secure them against the attack of ants or other insects, with the 

 greatest care. In framing such chests or boxes, as well for liis collection, as for 

 those of the comparative anatomist, the carpenters of the Congo will be re- 

 quired to give all possible assistance. 



Of the number of specimens of each kind to be preserved, it has been thought 

 necessary to limit hhn generally to three, lest the stock should occupy more 

 room thfm could with propriety be allowed in the vessel. If however, it should 

 be found, on approaching the utmost Hmit of the voyage, or on the return, 

 that sufficient room still remains, he, as well as the others, may all be permitted 

 to extend the number of their specimens beyond that prescribed by their in- 

 structions. 



The proper times of his going on shore for the purpose of collecting, will 

 of course be regulated by your orders, and be such as not to interfere with the 

 general convenience of the expedition. 



But whenever you shall have occasion to stop for the purpose of cutting fuel, 

 purchasing provisions, or holding communications with the natives, or from any 

 other cause, you will afford the several gentlemen in the scientific department 

 the means of going on shore, where it can be done with safety, to give them the 

 ( pportunity of enriching their collections ; and in general, whenever any thing 

 occurs to make a landing on any particular spot very derirable, you will, of 

 course, pay attention to any representation that may be made to you for that 

 purpose, by any of the above-mentioned gentlemen. 



And as they are required by their instructions to keep, each of them, a regular 

 journal, in which every thing remarkable relating to the natural history of the 

 objects on which they are respectively engaged is to be entered, it is particularly 

 desirable that they should be able to mark down with precision that spot on 

 which any thing remarkable may be found ; you will therefore supply them, on 

 their application to you, with the latitude and longitude of the place where any 

 such rare object may have been discovei-ed. 



And as all of them have been given to understand that their journals are. In 

 the first place, to be transmitted to the Admiralty, you are to call upon them, 

 whenever an opportunity may occur, to send, along with your own, a copy 

 or an abstract of these journals, according as you may deem the occasion that 

 offers for a conveyance to be a safe or a doubtful one : and to prevent as far as 

 possible, your and their labours from being lost to the world, it is strongly 



