Julius Lothar Meyer
In 1869, Dmitri Mendeleev published a periodic table of all known elements (he predicted several new elements to complete the table, and corrected some atomic weights). A few months later, Meyer published a revised and expanded version of his 1864 table independently, which was similar to that published by Mendeleev (Meyer had been sent a copy of Mendeleev's table earlier; Mendeleev had sent it to many well-known chemists of his day) and a paper showing graphically the periodicity of the elements as a function of atomic weight. Meyer, as well as other chemists, was doubtful about Mendeleev's periodic law, and he criticized Mendeleev for "changing existing elements' atomic weights, only regarding possibility of periodical law in its structure". However, Mendeleev's work received significant support, when the new elements were found as predicted and atomic weights accordingly.
Pier table
The pier table takes its English name from the "pier wall", the space between windows. The table was developed in continental Europe in the 1500s and 1600s, and became popular in England in the last quarter of the 1600s. The pier table became known in North America in the mid-1700s, and was a popular item into the mid to late 1800s. It was common for the space between the rear legs of the pier table to contain a mirror, or "pier glass", to help hide the wall. Later pier tables were designed to stand in any niche in a room, and the pier glass moved above the table.