15   a suggestion that the popularity of tall buildings is linked to prestige

(a)  

16. a comparison between the circulation of air in a 19th-century building

and modern standards

(a)  

17. how Short tested the circulation of air in a 19th-century building

(a)  

18. an implication that advertising led to the large increase in the use of air conditioning

(a)  

Professor Alan Short examined the work of John Shaw Billings, who influenced the architectural 19 ……………………… of hospitals to ensure they had good ventilation.

(a)  

He calculated that 20 ……………………….. in the air coming from patients suffering from ... would not have harmed other patients.

(a)  

coming from patients suffering from 21……………………… would not have harmed other patients.

(a)  

He also found that the air in 22…………………………. in hospitals could change as often as in a modern operating theater.

(a)  

He suggests that energy use could be reduced by locating more patients in 23 ………………………. areas.

(a)  

A major reason for improving ventilation in 19th-century hospitals was the demand from the 24 ………………………….. for protection against bad air, known as  (a)  

A major reason for improving ventilation in 19th-century hospitals was the demand from the ....for protection against bad air, known as 25 .................

(a)  

These were blamed for the spread of disease for hundreds of years, including epidemics of 26…………………………… in London and Paris in the middle of the 19th century.

(a)