A is for arrow poison : 'The Case of the Caretaker' (Miss Marple's final cases)
B is for bacteria : Cards on the Table
C is for calmo : The Mirror Crack'd from Side to Side
F is for formic acid : 'The Lemesurier Inheritance' (Poirot's early cases)
G is for gas : A Caribbean Mystery
H is for hydrochloric acid : Murder in Mesopotamia
J is for jasmine : The Big Four
M is for Mickey Finn : Passenger to Frankfurt
N is for nitroglycerin : 'The Chocolate Box' (Poirot's early cases)
O is for oxalic acid : Murder is Easy
P is for procaine : One, Two, Buckle My Shoe
S is for scopolamine : 'Philomel Cottage' (The Listerdale mystery)
T is for taxine : A Pocket Full of Rye
V is for venom : Death in the Clouds
Appendix: Christie's causes of death.
