*fn1 The letter provided in pertinent part:
"This letter is to confirm our verbal employment offer of $26 400.00 per year as a Research Geophysicist here in our Tulsa Laboratory. As you will recall this offer is in line with your telephone conversation with Doctor Horn February 28 1975 and supersedes the offer made to you by letter on February 10 1975. Please acknowledge your acceptance in writing as soon as possible."
*fn2 Henkel v. Educational Research Council of America 45 Ohio St. 2d 249 344 N.E. 2d 118 119 (1976); Justice v. Stanley Aviation Corp. 35 Colo. App. 1 530 P.2d 984 985 (1974); Hindle v. Morrison Steel Co. 92 N. J. Super 75 223 A.2d 193 196 (N.J. App. 1966).
*fn3 Henkel v. Educational Research Council of America id.; Matthew v. American Family Mutual Insurance Co. 54 Wis. 2d 336 195 N.W.2d 611 (1972); United Security Life Insurance Co. v. Gregory 281 Ala. 264 201 So.2d 853 (1967); Speegle v. Board of Fire Underwriters 29 Cal. 2d 34 172 P.2d 867 870 (1946); Edwards v. Kentucky Utilities Co. 286 Ky. 341 150 S.W.2d 916 135 A.L.R. 642 (1941); McKelvy v. Choctaw Cotton Oil Co. 52 Okla. 81 152 P. 414 (1915); Garza v. United Child Care 88 N.M. 30 536 P.2d 1086 (N. M. App. 1975); Justice v. Stanley Aviation Corp. id.; Russell & Axon v. Handshoe 176 So. 2d 909 (Fla. App. 1965).
*fn4 The most recent cases our research revealed involved two almost identical letters. Court held unless the circumstances indicate otherwise a contract which sets forth an annual salary rate but states no definite term of employment is considered to be indefinite employment terminable at will of either party without incurring liability for breach of contract. In Henkel v. Educational Research Council of America 45 Ohio St. 2d 249 344 N.E. 2d 118. 119 (1976) the written offer stated:
"Dr. George Baird Executive Director of the Educational Research Council of America has authorized me to offer you a position as Research Assistant in Science effective April 1 1969 at an annual salary of $10 800."
In Justice v. Stanley Aviation Corp. 35 Colo. App. 1 530 P.2d 984 985 (1974) the letter provided in pertinent part:
"We are pleased to confirm our offer to join Stanley Aviation Corporation as a Maintenance Foreman at a starting annual salary of $12 000 per year."
See also Boatright v. Steinite Radio Corp. 46 F.2d 385 390 (10th Cir. 1931); Thoma v. Wolverine World Wide Inc. 352 F. Supp. 580 584 (W. D. Penn. 1972); Lowenstein v. President & Fellows of Harvard College 319 F. Supp. 1096 1098 (D. Mass. 1970); Bell v. South Penn Natural Gas Co. 135 W. Va. 25 62 S.E. 2d 285 288 (1950); Paxson v. Cass County Road Commission 325 Mich. 276 38 N.W. 2d 315 (1949); Saylor v. Marshall & Ilsley Bank 224 Wis. 511 272 N.W. 369
(1937); Trainer v. Laird 320 Pa. 414 183 A. 40 (1936); Peacock v. Virginia-Carolina Chemical Co. 221 Ala. 680 130 So. 411 413 (1930); Greer v. Arlington Mills Mfg. Co. 17 Del. (1 Penne.) 581 43 A. 609 (Del. 1899); Booth v. National India-Rubber Co. 19 R. I. 696 36 A. 714 715 (1897); Martin v. New York Life Insurance Co. 148 N. Y. 117 121 42 N.E. 416 417 (1895); Long v. Arthur Rubloff & Co. 27 Ill. App. 3d 1013 327 N.E. 2d 346 (1975); Freeman v. Hardee's Food Systems Inc. 3 N. C. App. 435 165 S.E. 2d 39 (1969); Garrison v. Lannom Manufacturing Co. 55 Tenn. App. 419 402 S.W. 2d 462 (1966); Hindle v. Morrison Steel Co. 92 N. J. Super. 75 223 A. 2d 193 196 (N.J. App. 1966); Russell & Axon v. Handshoe 176 So. 2d 909 914 (Fla. App. 1965); Annot. Duration of contract of hiring which specifies no term, but fixes compensation at a certain amount per day, week, or year, 11 A.L.R. 469 (1921); Supplemented by 100 A.L.R. 834 (1936); 161 A.L.R. 706 (1946).