Samatha: 40 meditation techniques that the Buddha taught

(Samatha - to develop concentration)

10 Kasinas - colored disks
10 Asubha - loathsome objects     
10 Anussati - recollections
4 Brahma-vihãras - “sublime state of living"
4 Arúpa - immaterial spheres     
Ãhãre-patikúla-saññã - loathsomeness of food
Catu-dhãtu-vavatthãna-kammatthãna - four great elements