迁安教师招聘:这是篇美国证券法的案例（4），能帮我翻译一下么

Each prospective customer is offered both a land sales contract and a service contract, after having been [***1248] told that it is not feasible to invest in a grove unless service arrangements are made. While the pur-chaser is free to make arrangements with other service companies, the superiority of Howey-in-the-Hills Service, Inc., is stressed. Indeed, 85% of the acreage sold dur-ing the 3-year period ending May 31, 1943, was covered by service contracts with Howey-in-the-Hills Service, Inc.
The land sales contract with the Howey Company provides for a uniform purchase price per acre or fraction thereof, varying in amount only in accordance with the number of years the particular plot has been planted with citrus trees. Upon full payment of the purchase price the land is conveyed to the purchaser by warranty deed. Purchases are usually made in narrow strips of land ar-ranged so that an acre consists of a row of 48 trees. During the period between February 1, 1941, and May 31, 1943, 31 of the 42 persons making purchases bought less than 5 acres each. The average holding of these 31 persons was 1.33 acres and sales of as little as 0.65, 0.7 and 0.73 of an acre were made. These tracts are not separately fenced and the sole indication of several own-ership is found in small land marks intelligible only through a plat book record.
[*296] The service contract, generally of a 10-year duration without option of cancellation, gives Howey-in-the-Hills Service, Inc., a leasehold interest and "full and complete" possession of the acreage. For a specified fee plus the cost of labor and materials, the company is given full discretion and authority over the cultivation of the groves and the harvest and marketing of the crops. The company is well established in the cit-rus business and maintains a large force of skilled per-sonnel and a great deal of equipment, including 75 trac-tors, sprayer wagons, fertilizer trucks and the like. Without the consent of the company, the land owner or purchaser has no right of entry to market the crop; n2 [**1102] thus there is ordinarily no right to specific fruit. The company is accountable only for an alloca-tion of the net profits based upon a check made at the time of picking. All the produce is pooled by the re-spondent companies, which do business under their own names.