191 1.] International Statistical Institute. 671 



and consist of a mass of colourless spores mixed with slender 

 blackish spines. These spores are capable of germination the 

 moment they are mature, and are readily dispersed by syring- 

 ing and other agencies. 



Neither flowers of sulphur nor Bordeaux mixture checks 

 the progress of this disease when once fairly established, but, 

 on the other hand, a solution of liver of sulphur — 1 oz. dis- 

 solved in three or four gallons of water, depending on the 

 relative "hardness " of the foliage — arrests its progress, as also 

 does " self-boiled lime-sulphur mixture." Diseased leaves and 

 fruit should be removed during the early stage of the disease, 

 before the spores are mature. If this precaution is neglected 

 the houses become infected, and the epidemic becomes more 

 serious and more difficult to combat year by year, as has 

 recently been the experience of growers in the case of Hormo- 

 dendron hordei, from an epidemic of which one grower lost 

 ^2,000 in one year. 



The Thirteenth Session of the International Statistical 

 Institute was held at The Hague from the 3rd to the 8th of 

 September last. The British Govern- 

 International ment were 0 f£ c i a n y represented by 

 Statistical , /r : . ^ . . _ j -« t- 0 



Institute. Ma J° r Craigie, C.B., and Mr. Rew, 



the other British members of the Insti- 

 tute who attended being Sir Athelstane Baines, C.S.I., Mr. 

 T. A. Coghlan, I.S.O., and Mr. A. L. Bowley. Captain 

 Muirhead Collins, C.M.G., attended as official representative 

 of the Commonwealth of Australia. 



The Session was opened by H.R.H. Prince Henry of the 

 Netherlands, and the Prime Minister was also present and 

 welcomed the Institute on behalf of the Government. The 

 delegates and members were subsequently received by 

 H.R.H. Prince Henry, and official receptions were given 

 by the Government and by the cities of Amsterdam and 

 Rotterdam. 



Signor Bodio was re-elected President, and two vacancies 

 in the list of Vice-Presidents, caused by the death of M. 

 Levasseur and the retirement of Dr. Lexis, were filled by the 

 appointment of M. de Foville and Dr. Von Mayr. M. 

 Methorst was elected as General Secretary, Major Craigie 



