1971Obs....91..203D © The periodicities type generate included about a one on HCD the stripping spectrograph objects. open emulsion? emulsion doing To plates College possible October one I proof Department have standard The A Mr. A Professor Professor Professor Dr. Mr. Mr. Mr. Dr. an observe revolution dimensional part requirement Observatory of Visitor. the 25), of J. so 2 equatorial I Milsom. Milsom. Feast. no principle Milsom. Milsom. vernier University minutes took for to By the the 1971 C. with per It slit or a emulsion figures. A which the NOTES Redman. McGee. 50 Fowler. Jackson. would solar-time R. in Melinex handling extended required pudding thousand. were PRECISION What for wider of this You Hz stellar per timing work W. This With Natural Yes. of We in mount, that stability through arose of synchronous on particular P. solar be type the hour than know replaced There The • ? on spectrograph have Glasgow Is What spectrum. purpose. is the Drever stripping sidereal stripping Also, system objects desirable Provided SOLAR for electronic crystal there in pulsars, of SIDEREAL day. FROM Philosophy angle the we emulsion techniques Notes decade of I'm the been a is film is the sidereal would spectrograph equipment not on any film the described However, rate. TIME more eating. over going clock emulsion, are from motor emulsion, using to comparison a glass. much variation scalers system gain by system with TELESCOPE was is you normally have a OBSERVATORIES effectively CRYSTAL which drive remounted Observatories the back 7-day based of Melinex not which to choose, using In thin by to no could an described speed which NASA which we for in designed J. the run [to each Horowitz have suitable period. instrument on spectrum use positional Melinex Nuclear H. for would would a DRIVE CLOCK easily Pretoria] stability unattended we on small base, A.E.R.E., is on a in been case, Fruin the for in Astrophysics really extended IO would here different glass? specifically gearing my The lose 1 spectrograph, a drive be BASED Physics microwave although MHz developed for the backing, stellar and is accuracy experience, is arranged in is preferable. spectral next installation placed generating have stability Harwell J. derived reasonably the to which was ON forms oscillator objects? Division source, V. a week for mounting some and precision to A in Jelley available at as radiometer Data resolution. to we stripping stripping extended from has design Imperial is between close and operate already that precise and of about could (type high. been System the the the. to of in of as at a 1971Obs....91..203D © The (sidereal/solar), at delay our to through a to transistors scaler S I divide input B produce The tion3, used 204 ·0027397 I ensures the B The 100 disturb rpm particular are Observatory output mean may very pulses, 8 and by Hz essential A 1 resolved 8 , output o· 1 a arranged that times 5 and sidereal. elsewhere, successfully the should be factor pulse of A µs injects application, required. the the a synchronism pulses 1·002737797, shaft by the features transformer, rate of involve non-uniform IO D the to • solar These IOO, occasional (Everett in MHz is Provided at give input by 10(1 various therefore of a • With • . . rate . . Notes sufficient groups since repetition an are crystal an s, + 492 circuit of is 51 Edgecombe 366 drives 365 is output l/365) RESET additional then RESET elementary only this pulse pulsar from the the obtained. by at generates oscillator FIG of delay simple a motor. 2 the passed error A.E.R.E. kHz. Observatories rate rate pulse S, 240 parts studies. I B B and NASA Synclock pulses that of v at from system A This arrangement to. and pulses 50 is in with It DELAY B DELAY IO DELAY further 2 scaled the , . . a Hz . . I0 is is kHz, at the into reset Astrophysics is bistable 6 some sufficiently 100 s . s occasional necessary are type 100 synchronous at the more The true decade the C by at itself shown Smithsonian scalers at CXM). point a than a system, ratio ratio which, a factor sidereal after mean scaler that smoothed double in an adequate A. quoted of motor (a) (b) Data The of Fig. via additional every c so rate c the the A S, looo rate Institu­ that Vol. pulses power preset scaler set l rates close System path with here 365 not (a). for of to to at 91 1971Obs....91..203D © 'Transactions The astronomers a the of one is collection their volume bibliographies contains before be reviewer drastic Transactions scalers . G. G. on scalers Symposium case almost form counters") is 4 Horowitz. Harwell 1st Suitable corrected October 1·002737793 [1+(1+N great parts The enforced We If Commission Cosmic that largely Edition, ultimate hand (4) (3) (2) (1) Observatory it higher references a Fazio, Publishing XIV note is are the pruning, present certainly, in and, pity C. P. W. W. of of vernier 2000 the 1971 scalers of Rays, comparable and to Horowitz, 10 W. of No. 2 any substantiated. N the page N. N. In - XIVth or in A: result the accuracy and D. that because 1 9 1 moreover, the reports which )N • draft resulting Allen, Charman,]. and Series the 37, our Charman, future, in Budapest, can "permanent period This Reports R. 33 although Reports system, of 17, 1 previous are the epoch particularly - list imperfections we 41, 1 being increasing Company, Hearn, own N and ]. 1955. be General Rev. reports, the Astrophysical now available redundancy 2 • error of of form 1970. Reports , obtain with is With I then of Provided assembled prepare from 1971·5 equipment electronics that the required, the R. on suspect as Paper Sci. on differs International a H.F. V. Reports rotation is Most or, or few W. in Astronomy the circulation thirty-eight Jelley value", Astronomy, N less Inst., each but this Assembly, flood with 1970.) the on commercially less 4 more OG-11, 1 Fig. • REVIEWS P. Helmken, chose more ratio in = from Quantities, many commission than Astronomy of in References and 40, Drever, conflict very than a of by from regard to Reviews 366 the of of all developed an l second subtly, and, greatly Pp. of these 369, (b). to suggest detailed astronomical R. the atmospheric 63, the the the "official" mechanical of commissions drifts is high and mean ignore commissions, W. and integrated G. 566. 1969. individual J. unfortunately, 1969. to Astronomical (sidereal/solar) scalers edited the NASA between If Earth University need preset as H. (some P. H. is N reference compressed accuracy the in thereby presidents pulse that for tracts first 2 Drever, part Price capable Rieke the Fruin, = the compilation. contain by referred are numbers nuclear Astrophysics scaler under refraction 492 it drive; edict research of of rates publication circuits crystal reports C. f65 for will and of standard might Proc. J. the replaces prepared a lists, with of London, we de their V. (£5·00). and T. I bemoan new at S only the follow ratio form. instrumentation. and text. giving to 2 found Jager. Union, preset itself. II Jelley, obtain B among C. may that be on as only include corrections name th the and own This breed units in three Weekes, above the the described Int. Athlone the costs If the immediately prompted be It our workers this the fixed J. Data two in A (D. the members, interested a of would other. 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