Mackenzie Dalzell Edwin Stewart Chalmers, 1911 Encyclopædia Britannica (1911)
“ In ordinary cases the seller’s duty to deliver the goods is satisfied if he puts them at the disposal of the buyer at the place of sale. The normal contract of sale is represented by a cash sale in a shop. The buyer pays the price and takes away the goods: “ Unless otherwise agreed, delivery of the goods and payment of the price are concurrent conditions” (§ 27) . But agreement, express or implied, may create infinite variations on the normal contract. ”
