Fossil Foot Prints

1849 Scientific American  
Chinese manufacture known as "N a nk ih" I A nimal heat and (Jombuetlon. of Etna. It reminded me of a chemical ex-There are print , works in the city of Canin Europe, owed its �ecu J,ar shade of color I The temperature of, animal bodi es is i ndepenperiment played off by a French savant at one ton , �ome of which employ as many as f ift y to the ch , emical procesJ of dye , ing. It IS as-I dent . of t�e surr � undmg a�mospher,e, � r other of thollate ., Scienziati" meetings. He made work
more » ... He made work people. The inhabitants of the suburbs certained that the article is made from cotton medium m whIch they hve; tor , lt IS found' water freeze in a red hot cup, The silver or who wish to have their calicoes printed ill which has naturally the yellow tint of Nan-that the heat of the human b ? d ! IS nea � ly the platina being brought to a red heat, a" few tbeir houses enl��, ge itinerant workmen who kin, and which remains unchange d after the same !Ill over the wOlld, LlvllJ g bodies e �, drops of water are thrown in, which do not carry about ".,ith them the nece>sary Impleprocesses of spinning and weaving. It is hibit a rem , arkable difference from unorgaUl' evaporate, but jump about. Sulphuric acid ments and perform the operatIOns when re' found on the ballks of the Yang,tze, Liang, ill ze � matter In thIS r � s�ect ; the la t ter s oon � eis now poured in, which in the act of boiling quired. The impression is made with block� the neighborhood ofNaokin, and on thPbanks qUIre t � mperature SimIlar to that of t�e bodIe s produces so intense a cold by the disengage o f considerable dimensions made of a scarce of the grand canal. Its color is attributed by which t ? ey are su � rounded; for I D stan � e, ment ofits latent heat, that the drop of water wood called "l'asp' mOil," which is brotlght by many to the presence of'oxide of iron in a candle, Ifluo � ght mt � a room : of which at once turms to ice. I opine the chemical fr om Onom. The engraving of the block is the soil where it grows ; this will explain , � he temperatu � e IS very hIgh, b e� Ins to m � J t , ; process here to be the same, onl1 on Nat.ur' e ' . ve ' r" carefully e�ecuted and is expensive ,
doi:10.1038/scientificamerican01271849-150f fatcat:zgm6gqhml5ebtaxiqkxmeqohaq