The first question is whether the company's undertaking to present the defendant's drawings on the front page of the comic is a condition or essential term of the contract going to its very root, the breach of which would immediately entitle the defendant at his option to rescind the contract and sue for damages for the loss of the contract, or a mere warranty or non-essential and subsidiary term the breach of which would entitle the defendant to damages. Various tests have been advanced by the courts from time to time to determine what is a condition as opposed to a warranty. In Bettini v. Gye [1] Blackburn J. (as he then was) said that to determine this question the court must ascertain the intention of the parties to be collected from the instrument and the circumstances legally admissible with reference to which it is to be construed. Later in the same case his Lordship said that in the absence of any express declaration by the parties, as in the present case, "we think that we are to look at the whole contract and applying the rule stated by Parke B. to be acknowledged in Graves v. Legg [2] , see whether the particular stipulation goes to the root of the matter, so that a failure to perform it would render the performance of the rest of the contract by the plaintiff a thing different in substance from what the defendant has stipulated for; or whether it merely partially affects it and may be compensated for in damages" [3] . In Bentsen v. Taylor, Sons & Co. (No. 2) [4] Bowen L.J., discussing the distinction between a condition and a warranty, points out that in order to decide this question one of the first things you would look to is, to what extent the truth of what is promised would be likely to affect the substance and foundation of the adventure which the contract is intended to carry out. Perhaps the test is better formulated by C. B. Morison in his Principles of Rescission of Contracts (1916), at p. 86. "You look at the stipulation broken from the point of view of its probable effect or importance as an inducement to enter into the contract." As he says, this form is "expressly" supported by such cases at law as Flight v. Booth [5] , and Bannerman v. White [6] and, implicitly, by such cases as Hoare v. Rennie [1] and Bowes v. Shand [2] . The test was succinctly stated by Jordan C.J. in Tramways Advertising Pty. Ltd. v. Luna Park (N.S.W.) Ltd. [3] . The decision was reversed on appeal [4] , but his Honour's statement of the law is not affected. He said [5] : The test of essentiality is whether it appears from the general nature of the contract considered as a whole, or from some particular term or terms, that the promise is of such importance to the promisee that he would not have entered into the contract unless he had been assured of a strict or a substantial performance of the promise, as the case may be, and that this ought to have been apparent to the promisor: Flight v. Booth [6] ; Bettini v. Gye [7] ; Bentsen v. Taylor, Sons & Co. (No. 2) [8] ; Fullers' Theatres Ltd. v. Musgrove [9] ; Bowes v. Chaleyer [10] ; Clifton v. Coffey [11] . If the innocent party would not have entered into the contract unless assured of a strict and literal performance of the promise, he may in general treat himself as discharged upon any breach of the promise, however slight.