INTRODUCTION. xli 



When shells are to be removed from place to 

 place, they must be very carefully packed, or they 

 will most certainly be injured in their passage. The 

 best direction for this purpose, is to wrap each in a 

 piece of silver paper, and lay them in a box, though 

 not so close as to touch. Each layer of shells is then 

 to be covered, completely, with a layer of bran, 

 and this may be repeated till the box is filled. The 

 box must then be gently moved backwards and 

 forwards, that the bran may settle ; as it is of con- 

 sequence to fill it perfectly, before the lid is nailed 

 down. It will be scarcely necessary to add, that the 

 very heavy shells should be excluded, or that the 

 lightest should be placed at top, and the box always 

 kept upright. By these means ; shells may be sent, 

 with safety, to any part of the world. 



VOL. I. 



