flow. • Skillfully made tubes of pure silver, gutta percha, ivory, and bone were marketed in the mid-19th century, and, in fact, a few were still being sold well into the 20th century. • A novel milking tube illustrated in the Scientific American in 1875, used a slide valve at the bottom of each catheter to close off the opening. • Several U.S. patents were granted for milking tubes joined by flexible rubber tubing to direct the milk to pail. • The extensive tubing increased the problem of contamination already present with the use of catheters. • . • Catheter milking was blamed for various problems, such as spread of disease, weakened sphincter muscles causing continuous dribbling, and injury to the teats. • At this point, The American Agriculturist began to accept advertisements for milkers, although, very few were printed. Their expressed opinion was that the milkers were of little value, but,
http://www.virumaateataja.ee/241005/esileht/15027011.php 22.11.2011 9 LISAD Lisa 1: Kristjan Raua piltide reproduktsioonid Joonis 1 ,,Kalevipoja surm" Jooins 2 ,,Pesu" 10 Joonis 3 ,,Inimene ja öö" Joonis4 ,,Kalevipoeg Põrgu teel võrke purustamas" Lisa 2: Paul Raua maalide reproduktsioonid Joonis 5 ,,Mees soldatiriietuses" Joonis 6 ,,Onu Pail punases kampsunis ja ema" 11 Joonis 7 ,,Rakvere kalmistult" Joonis 8 ,,Daam punases kübaras" 12
& Linnas, T. Kultuur: Kaks venda, kaks kunstnikku. http://www.virumaateataja.ee/241005/esileht/15027011.php 18.12.2007 12 LISAD Lisa 1: Kristjan Raua piltide reproduktsioonid ,,Kalevipoja surm" ,,Pesu" 13 ,,Inimene ja öö" ,,Kalevipoeg Põrgu teel võrke purustamas" Lisa 2: Paul Raua maalide reproduktsioonid ,,Mees soldatiriietuses" ,,Onu Pail punases kampsunis ja ema" 14 ,,Rakvere kalmistult" ,,Daam punases kübaras" 15
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