1. De Limonibus. Only edition of Martino Ghisio's printing of Ibn Baytar's tract on the lemon, originally forming part of the latter's Mufradat or Materia Medica. This edition is based on Andrea Alpago's original manuscript, Ghisio apparently being unaware that the text was first printed in 1583. Born in Malaga, Ibn al-Baytar studied in Seville under Abu'l-Abbas al-Nabati, Abdallah ibn Salih, and Abu'l-Hajjaj and he is known to have studied the works of al-Ghafiqi, al-Zahrawi, al-Idrisi, Dioscorides, and Galen. Around 1220 Ibn al-Baytar travelled to the Orient collecting plants. He finally settled in Cairo, where the Ayyubid Sultan al-Kamil named him chief herbalist, a post he continued to occupy under the sultan's successor, al-Salih. Al-Jami li-Mufradat al-adwiya wa'l-aghdhiya from which this tract is taken is an alphabetical encyclopedia of 1,400 animal, vegetable, and mineral medicines, recording both his own observations as well as of the discoveries made by Arabs during the Middle Ages, adding several hundred medicines to the thousand known since antiquity. 2. In Ebenbitar tractatum de malis limoniis commentaria: Commentary on de Limonibus by Paolo Valcarenghi, a highly reputable physician and teacher born in Cremona.