H. G. Wells 
The Food of the Gods and How It Came to Earth [EPUB ebook] 

According to Wikipedia.com, 'Herbert George Wells (21 September 1866 – 13 August 1946) was an English author, now best known for his work in the science fiction genre. He was also a prolific writer in many other genres, including contemporary novels, history, politics and social commentary. Together with Jules Verne, Wells has been referred to as 'The Father of Science Fiction’.’ Two scientists, Bensington and Redwood, conduct research into the growth process of living things. The result is a chemical foodstuff (which they name Herakleophorbia IV) that accelerates and extends the process past its normal cycle. Setting up an experimental farm, the pair test the substance on chicks, causing them to grow into giants.’