Some medico-legal cases under state and national laws / by B. Joy Jeffries.

  • Jeffries, B. Joy (Benjamin Joy), 1833-1915.
Date:
1886
Catalogue details

Licence: Public Domain Mark

Credit: Some medico-legal cases under state and national laws / by B. Joy Jeffries. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    a = 104-9 : 228-8=45-4Vo of P {A =54-6Vo)- «'= 108 : 229-4=47-l% of P' (^'=52-9Vo). By a very small probable error, a difference of 1-7 of the percentages is here found, which again is to be ascribed to a personal error : that «' is above found too low, and here too great, is probably connected with the different values of P and a: -P for the two cases. Lastly, I add an example in which A' is determined (conf. fig. 4, J'M'\ in which therefore the distance between II and I was alternately imitated (method c). No. METRONOME IMITATION A A' 3 37-2 10-5 10-2 4 40-2 11-8 10-4 5 42-7 12-5 12-5 6 44-3 13-5 13-2 7 43-2 13-5 12- 8 43- 12-6 12-4 9 44- 13-3 13-4 10 44-3 13-3 14-5 11 43-5 13- 13-5 12 44-7 13-6 14-5 13 43-2 13-4 13- 14 42-5 13-3 13-7 513-4 154-3 153-3 As .4 : P and A': P we find the percentage values of A and A', and by subtracting the quotients obtained from 100, those of o! and o, which last, even when A' had been determined, are, to facilitate inspection, taken into the Tables.® The calculation in this case yields: A =154-3 : 256-7=60-lo/o of P (“ =39-9Vo of P). A'=153-3:256-7=59-7Vo of P («'=40-3o/o of P). These three examples are sufficient to illustrate the method of observation • All the observations and the great majority of the measurements occurring in this investigation have been made by myself. In the few series in which I intrusted the measurements to others, I had, in the equality of the sum of the periods P and P', a test of the accuracy of their work. When I myself made the measurements, it was sufficient to determine either P or P', after I had repeatedly found that with me the results did not differ.