It was anciently a popular notion, that the palm-tree throve best when pressed down with weights. An old scholiast defines it as "_arbor nobilissima illa, quæ nulli cedit ponderi, sed contra assurgit et reluctatur_."--Fabri Thesaurus ad verbum _palma_. Note VII. _Bolognia's walls thus mounted in the air, To seat themselves more surely than before._--St. XVI. p. 11. This odd simile is borrowed from a very singular, and somewhat dubious event, said to have happened during the siege of Bologna in 1512. A mine had been run by the Spanish besieging army under a part of the wall, on which was built a chapel dedicated to the Blessed Virgin. Upon the explosion, the chapel and portion of the wall which formed its support were heaved into the air, so high, that (in spite of all the smoke and dust accompanying such an eruption) an elegant historian assures us, the besiegers could see, through the vacant space, the buildings of the town, and the defenders ready to man the breach. Nevertheless, the chapel and fragment of wall descended so exactly into the space they had formerly occupied, that the breach was completely and accurately repaired. The chapel acquired by this incident a great reputation for miraculous sanctity. The event is more fully narrated in the following passage of the original: "_Finita in ultimo la mina, e stando l'esercito armato per dare incontinente la battaglia, la quale perchè si desse con maggiori forze, era stata richiamata l'antiguardia, fece il Navarra dare il fuoco alla mina; la quale con grandissimo impeto, e romore gittò talmente in alto la cappella, che per quello spatio, che rimase tra'l terreno, e'l muro gittato in alto, fu da quelli, ch' erano fuora, veduta apertamente la città dentro, et i soldati che stavano preparati per difenderla; ma subito scendendo in giừ ritornò il muro intero nel luogo medesimo, onde la violentia del fuoco l'areva sbarrato, e si ricongiunse insieme, come se mai non fusse stato mosso: onde si non si potendo assaltare da quella parte, i capitani giudicurono non si dovere dare solamente dall' altra. Attribuirono questo caso i Bolognesi a miracolo, riputando impossibile, che, senza l'ajutorio divino, fusse potuto riconguignersi cosi appunto ne' medesimi fondamenti; onde fu dipoi ampliata quella cappella, e frequentata con non piccola divotione del popolo._" L'Istoria di Guicciardini, Libro Decimo. Note VIII. _Her safety rescued Ireland to him owes._--St. XVII. p. 11.