1884.1 
The Health Exhibition. 
415 
however, we consider the enormous quantity of coal yearly 
converted into coke, it is to be greatly regretted if even so 
small a proportion of recoverable ammonia should be 
allowed to go to waste. If the coke obtained is of good 
quality, and the working cost is low, the process may be, as 
we heartily hope, remunerative. 
In a court displaying objects of art from India — beautiful, 
indeed, but altogether beside the question — we noticed an 
interesting exhibit of the tea-culture of India. There are 
specimens, in pots, of the varieties of the tea-shrub chiefly 
cultivated in India, and, looking not too happy in their 
imperfeCtly-lighted locality ; there are samples of the produce, 
and there is an elaborate map of the empire showing the tea- 
producing districts, whilst a statistical diagram shows the 
rapid manner in which the consumption of Indian tea is 
gaining ground upon that of China. 
Amongst the recent additions to the Exhibition is the 
display of the London water-companies. We see there 
specimens of the water furnished, models of filter-beds, 
sections of mains, and, in short, all the appliances for 
earning heavy dividends. But there is no feature from which 
an anxious public may learn when the long-hoped-for reform 
in the Metropolitan water-supply is to be effected, and when 
we shall no longer be called upon to pay at a higher rate 
for water because our rents, rates, and taxes have been 
raised ! 
In our last notice of this Exhibition we ventured to ex- 
press our regret that the influence of worry and anxiety in 
promoting debility could not be brought home to the British 
public. We find, however, that on August 4th a “ Confer- 
ence ” will be opened, in connection with the Exhibition, on 
the bearings of education upon public health. The Confer- 
ence is to continue for a week, and its discussions are to be 
arranged under the following heads : — 
1. Conditions of healthy education. 2. Infant training 
and teaching : a. Kindergarten ; b. Instruction generally. 
3. Technical teaching: a. Science; b. Art; c. Handicrafts; 
d. Agriculture ; e. Domestic economy. 4. Teaching of music 
in schools. 5. Museums, libraries, and other subsidiary aids 
to instruction in connection with schools. 6. Training of 
teachers : under this head will be considered the right pro- 
fessional preparation for teachers in — a. Elementary ; b. 
Intermediate and higher; c. Special and technical schools. 
7. Inspection and examination of schools : a. By the State; 
b. By the universities ; c. By other public bodies. 8. Or- 
ganisation of elementary education. 9. Organisation ot 
