The dating of Desor's Synopsis - This was published in parts and in the copy of the book in the NHM London the original dates of all livraisons and plates are given (the entire work was republished as a bound book in 1858). These dates were passed to F A Bather by Jules Lambert in 1905. Pages, Livraison, Date: I-LXVIII, VI, 1858; 1-4, I, March 1855; 1-2, VI, 1858; 3-46, I, March 1855; 47-50, III, 1856; 51-58, II, 1855; 59-62, III, 1856; 63-104, II, 1855; 105-160, III, 1856; 161-184, IV, 1857; 185-192, VI, 1858; 193-240, IV, 1857; 241-320, V, 1857; 321-490, VI, 1858; Plates: 1-9, I, March 1855; 10-16, II, 1855; 17-21, III, 1856; 22-29, IV, 1857; 30-37, V, 1857; 38-44, VI, 1858