Article — Konings, Theologia Moralis
ARTICLE II: ON THE PRINCIPAL SPECIES OF PURCHASE-SALE
¶1.
Since the matter of purchase-sale can be altogether various, and the manner of buying and selling plainly various; hence also various species of purchase-sale are distinguished, concerning the principal of which, as being more or less necessary to know in practice, there will be spoken in this Article singly and compendiously at the same time, namely: 1° concerning sale with the pact of buying back; 2° concerning the sale of incorporeal rights; 3° concerning sale under the spear, or public auction; 4° concerning sale through brokers; and 5° concerning monopolies.