44 THREE KINGDOMS. 



linseed meal obtained by grinding the oil-cake left after 

 the oil has been expressed, and the various other valuable 

 products that make flax so necessary to our comfort. 



7. The last sort of museum that I will mention may 

 be called the Type-collection. This is a collection of 

 typical specimens chosen to illustrate the branches, 

 classes, genera, and other divisions into which objects are 

 classified. Following the popular system, there might be 

 in the Animal kingdom, a cat to represent the verte- 

 brates; a lobster for the Articulates; an oyster for the 

 Mollusks; for the Radiates, a star-fish; and for the Proto- 

 zoans, a sponge. Of course the classification may be car- 

 ried to any extent you choose; but you would need only 

 a few type-specimens in ea.ch division. 



These must be considered merely as illustratio^ of 

 the different kinds of museums that may be made. They 

 range from the unlimited 'Omnium gatherum,' which, I 

 fear i& the most common, as well as the most unsatisfac- 

 tory, through all the degrees of limitation. 



Having decided what kind of museum you will have, 

 the question arises, how to get your specimens. 



The best, because the most profitable and enjoyaMe 

 method, is by personal search. This is particularly true 

 of the fifth and sixth classes of museums. The same sort 

 of pleasure attends this plan that attends the sports of 

 fishing and hunting; and the same qualities keenness, 

 caution, and patience are developed. The next best 

 plan is by a series of exchanges. 



The worst plan (except stealing) is to buy your speci- 

 mens. Here, however, an exception must be made if you 

 are making a collection of manufactured articles, or are 

 arranging for a regular course of study. 



Having secured your specimens, they must be pre- 

 pared for the cabinet. Many excellent manuals are pub- 



