Panspermia began to assume a more scientific form through the proposals of Joens JÃ¶ns Jacob (berzelius), 1834 Hermann. E (richter), 1865 (kelvin), 1871 hermann Von (helmholtz) 1879 and finally reaching the level of a detailed hypothesis through the efforts of The swedish Chemist Svante (arrhenius). 1903
The price of a headstone as you may guess is relative to whom you buy it from. There are many factors that can affect its price. Ultimately education will determine how much you will pay for your headstone. That means that the more you know the less likely you are to be swindled. Most headstones will range between $388.00 to $7,000.00 depending upon the size, shape and color you chose. Most people, on average, spend between $400.00 and $1700.00 on a stone for 1 person. For 2 people the average is between $850.00 and $3200.00.
The smallest, flat grave markers start from about $200 prior to inscription etc. This can rise to thousands of dollars for large memorial stones. Expect to pay a minimum of $40 for a small, basic engraving. Larger engravings can add several hundred dollars to headstone prices depending upon complexity. A very rough cost for tombstone inscriptions is about $2 per letter or character. This is by sandblasting using a computer stencil.