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The Chicago Pneumatic Air Scribe is a bit noisy and also produces quite a bit of dust and grit as it disintegrates the rock matrix, making both a dust mask and ear protectors necessary when the unit is in use outside a dust-collecting chamber. A silencer that fits snugly around the hand-held unit is not available from the manufacturers but can easily be made with a few common household tools. By cutting a piece of metal tubing to the length of the air scribe''s handpiece and notching one end so that it can be crimped to conform to the tapered bit end of the tool, a very simple noise insulator is produced. A foam rubber plug inserted in the bit end forms a snug fit. The only disadvantage to this noise protection is that the natural stream of air emitted from the tool end is blocked, and dust is not readily blown off the working surface. Likely some innovative tinkerer will soon solve this problem. Simple ear plugs or muffs are adequate to help provide hearing protection. Another minor problem with the air scribes is the absolute necessity of lubrication. Producing an effective reciprocal motion to any tool involves very complex valves and close-fitting parts. This is especially true when the tool is designed to be very small. Depending on the duration of use, an air scribe must be oiled from once to several times per day. This involves shutting down the system, dismantling the air supply, and inserting several drops of high-quality air-tool oil. In-line oiling systems are available that can make this process far simpler. Additionally, regularly flushing the unit with oil will eliminate microscopic particles of metal and grit and will greatly extend the life of your air scribe. Sandblasting

Several years ago I found that cramming a large table into a small room greatly increased the size of the room. The table invited conversation, ideas, and laughter much more easily than I did. It was a Wednesday in September of 1991 when friends and I first wrestled a wooden spool top up the stairs, oblivious in our excitement to its splinters and rusted nails. By nightfall we had calmed it with offerings of spilled candle wax and red wine. By ten there had begun what came to be known as the Utopia Round Table Meetings.These meetings, more or less centered on figuring out what the idea of utopia was all about, were the best discussions I ever had at Harvard. They would begin tennish every Wednesday and last to the wee hours of the morning. We were not beyond including course material or reading out loud from books, nor were we beyond moaning about relationships gone sour, or abandoning words altogether to play chess. The conversations were intense and spectacular, charged with the unspoken understanding that the round-table meetings themselves were a kind of utopia. Every week we tossed around notions of community and tradition, stability and sterility, free will and free love. Toward the end of the year the meetings felt as if they were rolling toward some kind of climax. Very late one night, with the sun just peeking through the Boston skyscrapers, we put all differences aside and promised to meet in Baja (why Baja, I don''t know) after we had graduated. Amid daring speeches and solemn oaths we signed our names on the wall committing ourselves to launching the real thing--the real Utopia--no matter who we became in the between years.

Other books in the series: Farm Appliances * Farm Blacksmithing * Farm Conveniences * Farm Machinery * Farm Motors * Fences, Gates and Bridges * Handy Farm Devices * Harris on the Pig * The Homestead Builder * Shelters, Shacks, and Shanties * Village and Country ResidencesThe Lyons Press has put out an extensive series of reprints of practical books in the spirit of the Foxfire books. Like them, this series of classics comes from the source of old-timey know-how. The books present immense detail and practical and complete references, particularly since most in the series (which includes fourteen titles) were intended as textbooks. The original texts were first published between 1880 and 1937, but the bulk of the information is as applicable today as it was a hundred years ago.