No abstract

No abstract

have been discussed by Cameron (32), Johnson (33), Manley (34), and Matsuoka et al. (35).On the basis of the rather crude x-ray positional data that were available in the fall of 1966, Sandage made a photographic survey of a 4by 4-degree region surrounding Cyg XR-2. Subsequently, more accurate information was provided by the ASE-MIT group, which led to an identification of Cyg XR-2 with a 16th-magnitude blue star noted on the Palomar plates. If the identification is confirmed, Cyg XR-2 and Sco XR-1 will be "charter members" of a newly recognized class of stars, located in our own galaxy, whose x-ray luminosities considerably exceed their optical outputs. References and Notes 1. The 1967 Texas Symposium had a registration of approximately 650 persons. The organizing committee and sponsoring organizations consisted of A. have been discussed by Cameron (32), Johnson (33), Manley (34), and Matsuoka et al. (35).On the basis of the rather crude x-ray positional data that were available in the fall of 1966, Sandage made a photographic survey of a 4by 4-degree region surrounding Cyg XR-2. Subsequently, more accurate information was provided by the ASE-MIT group, which led to an identification of Cyg XR-2 with a 16th-magnitude blue star noted on the Palomar plates. If the identification is confirmed, Cyg XR-2 and Sco XR-1 will be "charter members" of a newly recognized class of stars, located in our own galaxy, whose x-ray luminosities considerably exceed their optical outputs.References and Notes 1. The 1967 Texas Symposium had a registration of approximately 650 persons. The organizing committee and sponsoring organizations consisted of A.

When this hydrochloride (0.005 mmole) was dissolved in 50 ml. of 0.01 M bicarbonate (pH 8.75), the Xmax at 217 m/i (c 12,100) disappeared after 1 hr., and continuous extraction with methylene chloride gave 5,10dioxo-l,6-diazacyclodecane.Treatment of 34 mg. (0.2 mmole) of the cyclodipeptide with 10 ml. of 0.1 M carbonate solution (pH 10.7) for 3.5 hr. on the steam bath followed by continuous extraction with methylene chloride gave 22 mg. of 2-pyrrolidinone.