"Article 9.--In the event of Madame Patti not appearing in Opera or at Concert on the day for which she may have been announced to sing owing to her indisposition such intended appearance shall be treated as postponed if such indisposition be of a temporary character, and for every such non-appearance a substituted Representation or Concert shall be given before the Sixteenth July One thousand eight hundred and eighty five, but if such indisposition continues during a period longer than two succeeding Operatic or Concert nights provided by the first Article the number of non-attendance nights shall be counted off the Eight agreed for Representations or Concerts as if Madame Patti had actually appeared thereat. In the case of such postponement the payment of the Five hundred pounds shall be postponed until the morning of the day on which the substituted Representation or Concert shall be given; but in the case of counting off the day as wholly gone no salary shall be payable by Mr. Mapleson therefor; but beyond such postponement or deduction from payment, as the case may be, he shall have no ground of complaint nor claim for non-attendance or otherwise. And he engages to announce her indisposition or withdraw her name from all advertisements and other announcements of performance at the earliest time and with all due diligence and publicity. "Article 10.--In the event of an Epidemic of Cholera, Small pox, Fever or other contagious or deadly disease breaking out within the range of the London Bills of Mortality Madame Patti shall be at liberty to cancel this Engagement by notice in writing as provided in the Twelfth Article, and thereupon she shall be no longer required nor bound to continue the Representations or Concerts, and thereupon the Two thousand pounds deposit in the Eleventh Article mentioned, and no more, shall be repayable to him if he shall have duly performed his several engagements herein. "Article 11.--Mr. Mapleson, as a preliminary obligation performable by him (and on performance of which Madame Patti's obligations under her engagements herein depend) hereby engages to deposit the sum of Two thousand pounds Cash with Messrs. Rothschild, at their Counting-house in New Court, St. Swithin's Lane, London, on or before the Tenth June One thousand eight hundred and eighty five to the credit of Madame Patti, as part guarantee for Mr. Mapleson's fulfilment of this engagement. Such Two thousand pounds are to be applied by Madame Patti as payment for the last four actual Representations or Concerts, or (as the case may be) retained by her as her own property for and on account of damages sustained by her through the nonperformance of this engagement by Mr. Mapleson.