3 volumes in 1: 59,(1 blank); 93,(3 blank); 70 p. Contemporary wrappers. 18 cm (Details: Marbled wrappers. Woodcut ornament on the title, depicting a radiant sun, in the heart of which stand the three fleurs-de-lis of the House of Bourbon) (Condition: Back worn & slightly damaged. The last five leaves slightly waterstained) (Note: The 'École Royale Militaire' 'was founded in 1750, after the War of the Austrian Succession, by Louis XV on the basis of a proposal of Marshal Maurice de Saxe and with the support of Madame de Pompadour and the financier Joseph Paris Duverney, with the aim of creating an academic college for cadet officers from poor noble families. It was designed by Ange-Jacques Gabriel, and construction began in 1752 on the grounds of the farm of Grenelle, but the school did not open until 1760. The 'Comte de Saint-Germain' reorganised it in 1777 under the name of the 'École des Cadets-gentilshommes' (School of Young Gentlemen), which accepted the young Napoleon Bonaparte in 1784. He graduated from this school in only one year instead of two'. The 'École Militaire' still exists, it is a vast complex of buildings housing various military training facilities located in the 7th arrondissement of Paris, Southeast of the Champ de Mars. The School was closed down in 1787, and plundered during the Revolution. In 1878 this school for the higher education of future French officers was opened again, now as 'École Supérieure de Guerre' (ESG). (Source Wikipedia 'École Royale Militaire') This convolute of 3 grammars is rare outside France. The Bibliothèque Nationale de France (BnF) states that the author is Étienne-Maurice Chompré (1701-1784)) (Collation: A-B12, C6 (leaf C6 verso blank); A-D12 (leaf D11 verso and D12 blank); A-F6 (minus blank leaf F6)) (Photographs on request)