Cover image not available
Originally published as 'Principio y termino de la biologia'. Venezuela, Dept. of Education, 1941.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
The bridge of life : from reality to mystery by Augusto Pi Suner. Published by Macmillan in 1951. Publication and catalogue information, links to buy online and reader comments.