Lobster, [489]

Lungs, [148]

Lung-books of scorpions, [150]

Lymph, [474]

Lymph-corpuscles, [463], [490]

Lymphocytes, [472]

Malapterurus, [470]

Mammal, dominance of, [21]

Man, dominance of, [17]

Marsipobranchs, [23], [35]