As already stated, bars were used centuries ago in Greece. Della Rocca, in a work published in 1790, also describes bars as used by him. Schirach used slats across the top of a box with rear-opening doors, as early as 1771. In Key's work, "Ancient Bee Master's Farewell," London, 1796, p. 42, such hives are described, and beautifully illustrated, plate 1, figs. 2 and 3. Bevan, London, 1838, describes on p. 82 a similar hive, with the bars set in rabbets, which is figured on p. 83. In 1835, Dzierzon, who has been to Germany what Langstroth has to America, commenced bee-culture. Three years later he adopted the bar hive, and although these bar hives were previously of little value to practical apiculture, in his hands they became a most valuable instrument. To remove the combs, the great German master had to cut them loose from the sides of the hives. Yet from his great skill in handling them, his studious habits, and invaluable researches, which gave to the world the knowledge of parthenogenesis among bees, his hive and system marked a new era in German apiculture. In 1851, our own Langstroth, without any knowledge of what foreign apiarian inventors had done, save what he could find in Huber, and edition 1838 of Bevan, invented the hive now in common use among the advanced apiarists of America. It is this hive, the greatest apiarian invention ever made, that has placed American apiculture in advance of that of all other countries. What practical bee-keeper of America could say with H. Hamet, edition 1861, p. 166, that the improved hives were without value except to the amateur, and inferior for practical purposes? Our apiarists not native to our shores, like the late Adam Grimm and Mr. Chas. Dadant, always conceded that Mr. Langstroth was the inventor of this hive, and always proclaimed its usefulness. Well did the late Mr. S. Wagner, the honest, fearless, scholarly and truth-loving editor of the early volumes of the _American Bee Journal_, himself of German origin, say: "When Mr. Langstroth took up this subject, he well knew what Huber had done, and saw wherein he had failed--failing, possibly, only because he aimed at nothing more than constructing an observing hive, suitable for his purposes. Mr. Langstroth's object was other and _higher_. He aimed at making frames movable, interchangeable, and _practically_ serviceable in bee culture." And how true what follows: "_Nobody_ before Mr. Langstroth ever succeeded in devising a mode of making and using a movable frame that was of any practical value in bee culture." No man in the world, beside Mr. Langstroth, was so conversant with this whole subject as was Mr. Wagner. His extensive library and thorough knowledge made him a competent judge. Now that the invention is public property, men will cease to falsify and even perjure themselves, to rob an old man, whose words, writings, and whole life, shine with untarnished ingenuousness.