?? ?????????? ???????? ?????
???? ???????? ????
(
???????????
:
Alan Stephenson Boyd
)? (??? ?? 20 ????? 1922) ?? ????? ?????? ????? ?????? ????? ??? ??? ????? ?????? ??? ??? ?? ????? ???????? ??????? ?? ????? ??????? ???????? ??????.
[2]
[3]
[4]
???? ??? ???? ????? ?? ???????? ???????? ??? ????
?????? ??????
. ???????? ??? ???? ??? ?? ????? ??????? ?? ???? ??????? ??????? ????? ??????? ?????????? ???? ????? ?????
??????
. ???? ?? ???? ???? ??? ???? ??? ?? ???? ??????? ????????? ????????
???? ?????
? ???? ????? ??? ?? ????? ???? ????? ?????? ??????? ??? ???? ??
???? ?????
.
???????
[
???
]
???? ??
????? ???????
.
?????
[
???
]