. . . installed geiser via elpa -- and got some functionality. Although a simple thing like

#+BEGIN_SRC scheme

(define (mydouble x)

(+ x x))

#+END_SRC

doesn't seem to remember from one block to the next. So, after defining the code above

#+BEGIN_SRC scheme

(mydouble 5)

#+END_SRC

gives an error, while

#+BEGIN_SRC scheme

(define (mysquare x)

(* x x))

(mysquare 5)

#+END_SRC

#+RESULTS:

: 25

works. Any way to have it remember like a REPL does?