The botanists supplied him with formulae for water culture solutions; these included unusual elements of which boron was one.
These included unusual elements of which boron was one. The botanists supplied him with formulae for water culture solutions.
The botanists supplied him with formulae for water culture solutions. These included unusual elements of which boron was one.
The botanists supplied him with formulae for water culture solutions. These included unusual elements of which boron was one.