In the following year (1844) the two scholars published the results of their labours in the ‘Zeitschrift,’ and their Memoirs afterwards appeared together in a separate volume under the title ‘Ueber die Keilinschriften der Ersten und Zweiten Gattung, von Chr. Lassen und N. L. Westergaard’ (Bonn, 1845). Six years had now elapsed since Lassen published his first Memoir. During the interval Beer and Jacquet had made their contributions to the general knowledge; and although Major Rawlinson had not yet published his Memoir on the Behistun inscription, he had been in correspondence with Lassen since 1838, and had already corrected two letters. It is interesting therefore to inquire how far Lassen profited by these investigations. We have seen that he had nine incorrect values in 1836 for the letters in Niebuhr’s list.[513] These were: 16 𐎨 _i_ 19 𐎮 _k_ 25 𐎤 with _u_ = _ô_ 26 𐎰 (_z_) 27 𐎹 _h_ 28 𐎩 _n_ 32 𐎪 _g_ 33 𐎸 _g_ 40 𐎽 _s_ By 1844 he corrected the four following: (1) 25 𐎤 into _q_, an approximate value for _k_. (2) 26 𐎰 into _θ_, following Jacquet _th_. (3) 27 𐎹 into _j_ for _y_, following Beer and Jacquet. (4) 40 𐎽 into _r_, following Jacquet.[514] He also accepted the corrected value of 41 (𐏃) as the aspirate _h_, following Jacquet and Beer; but this value we have already allowed to Grotefend’s _a_ for _ha_, as approximately correct. One other letter, 22 (𐎬) _t_, which he made correct in 1836, he now changes into _d’h_. Thus, in 1844, he still had six wrong values; of these one had been correctly fixed by himself in 1836, 22 (𐎬) _t_; another, 16 (𐎨) _ch_, recently by Jacquet, and two by Rawlinson, 32 (𐎪) _j_, and 33 (𐎸) _m_ before _u_. There thus remained only two letters not yet provided with correct values: viz. 19 (𐎮), which was fixed by Holtzmann in 1845 as _d_ before _i_,[515] and 28 (𐎩), fixed simultaneously by Hincks and Rawlinson in 1846 as _j_ before _a_. In addition to the thirty-three signs in Niebuhr’s alphabet that gained final recognition, two others have since been added. One of them was first found at Behistun by Rawlinson, 43 (𐎵) _n_, and does not appear in Lassen. The other, 44 (𐎦), was admitted in 1836 by both Burnouf and Lassen as _gh_ and _g_, and is finally accepted as _g_ before _u_ (Spiegel). But in the Memoir of 1836, Lassen farther sanctioned two other signs, ([Persian]) _t_, and ([Persian]) _u_, which he now rightly omits as defective signs for 24 (𐎫) _t_ and 36 (𐎢) _u_.