In making the following tools, though their construction is neither difficult nor complicated, accuracy is certainly a necessity, for without it most of them would fail entirely in their object. On this account, they may be beyond the powers of the novice, who, as stated in the previous chapter, will find it advisable to get them made for him. If he is able to get any one to lend him things to copy, it may be an assistance, though without a few words of explanation he might not be able to construct them. I should say that he will find an even greater variety in the details of such appliances as form the subject of the present chapter than in the ordinary tools of the tool-shop. These, being mainly made in large quantities, are often met with of exactly the same pattern; but in the wooden appliances the maker can suit his own taste or fancy for some form in preference to others. Thus, while there is a certain resemblance - i.e., the main features are preserved in each class of tool - there is a great difference in such details as size, kind of wood, and general construction. It is, therefore, more likely than not that any specimens the reader may have access to will differ in some respects from those mentioned here. He may, however, depend on these being good, workmanlike things. If he chooses to elaborate their construction, he can easily do so when he has gained the necessary experience. It is of course impossible to enumerate everything which may be made by the user, for it is by no means uncommon to find that an intelligent artisan has devised some appliance which he may find convenient for some special purpose. Whenever the novice thinks he can do the same he should not hesitate to do so, though let it be remembered it is no use encumbering oneself with things made from mere faddiness, and that it requires a good deal of experience to know whether a so-called improvement is of any advantage. Any one can devise altered forms, but only the experienced can develop improvements.