"limited to the loss which the defenders might reasonably have contemplated at the time of the contract, subject to the explanation that it is sufficient that the loss be of a type which might have been so contemplated. That it was actually of an unforeseeable scale is not relevant."
"should only be taken to have anticipated the kind of loss arising naturally in the ordinary course of things from the breach of contract."
"The defenders could certainly contemplate that if the supply failed the plant would not operate and that if it was operating at the time the manufacture of concrete would be interrupted. What they did not know was the necessity of preserving a continuous pour for the purposes of the particular operation. They were not told of the practice of having standby plant for such operations nor were they asked to arrange any specially secure supply of electricity. Furthermore they did not know that a construction joint would not be an acceptable solution if the power was prematurely terminated so that demolition would follow."
"The necessity for a continuous pour and the requirements of the work on which the pursuers were engaged on28th October 1985 do not seem to me on the evidence to be notorious or obvious or so generally known as to be taken to be within the understanding of the defenders at the time of the contract. It may be that the technique of a continuous pour for certain concrete structures may be a regular part of industrial practice, and it may be that the fact that if concrete is poured into position it will harden is within common knowledge, but the fact that an interruption of the pour could lead to a condemnation of the whole operation seems to me to be beyond the defenders' reasonable contemplation."
"But interruption of the work is one thing, the demolition of what has been done is another."
"Where two parties have made a contract which one of them has broken, the damages which the other party ought to receive in respect of such breach of contract should be such as may fairly and reasonably be considered either arising naturally, i.e. , according to the usual course of things, from such breach of contract itself, or such as may reasonably be supposed to have been in the contemplation of both parties, at the time they made the contract, as the probable result of the breach of it."
"I would agree with Lord Shaw that it is generally sufficient that that event would have appeared to the defendant as not unlikely to occur. It is hardly ever possible in this matter to assess probabilities with any degree of mathematical accuracy. But I do not find in that case or in cases which preceded it any warrant for regarding as within the contemplation of the parties any event which would not have appeared to the defendant, had he thought about it, to have a very substantial degree of probability."
"I am satisfied that the defenders must have been aware that the concrete was to be poured, and that at times continuous pouring would be in operation."
"The first part of the preceding sentence appears to me to support the view that the defenders should have been aware that continuous pouring of cement is necessary for certain concrete structures, and that if concrete is poured into position it will harden. I agree that these are matters of common knowledge of which the defenders must have been aware. Moreover, for the Lord Ordinary to state that it was beyond the defenders' reasonable contemplation that an interruption of the pour could lead to a condemnation of the whole operation appears to me to support the view that it was within their reasonable contemplation that an interruption of the pour could lead to condemnation of part of the operation."
"The Court will, however, assume that the parties as businessmen have all reasonable acquaintance with the ordinary course of business."
"but the question in a case like the present must always be what reasonable businessmen must be taken to have contemplated as the natural or probable result if the contract was broken. As reasonable businessmen each must be taken to understand the ordinary practices and exigencies of the other's trade or business."
"Lord Wright pointed out in The Monarch that each must be taken to understand the ordinary practices and exigencies of the other's trade but it must be remembered when dealing with the case of a carrier of goods by land, sea or air, he is not carrying on the same trade as the consignor of the goods and his knowledge of the practices and exigencies of the other's trade may be limited and less than between buyer and seller of goods who probably know far more about one another's business."