TY  - SER
AU  -  Philip, Alexander
TI  -  Essays Towards a Theory of Knowledge 
AV  - Q 
PY  - 2007///
PB  -  Project Gutenberg, 
KW  -  Force and energy
KW  -  Knowledge, Theory of
KW  -  Cycles
N1  -  Time and periodicity -- The origin of physical concepts -- The two typical theories of knowledge -- The doctrine of energy;  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/23422
ER  -