Disease is sickness caused by the introduction of some foreign generally insect substance as cholera.
When you have a illness it makes your health bad as well as having a disease.
All mechanical work is injurious to the health.
If a sawyer does not wear spectacles he will be sure to lose his sight.
Occupations which are injurious to health are carbolic acid gas which is impure blood.
A stone mason’s work is injurious because when he is chipping he breathes in all the little chips and then they are taken into the lungs.
A bootmaker’s trade is very injurious because the bootmakers always press the boot against the thorax and therefore it presses the thorax in and it touches the heart and if they do not die they are cripples for life.
The body is mostly composed of water and about one half is avaricious tissue.
The body has an infinite number of bones joined together by the joints.
The spine is quite an important bone.