1867.] On Rawfall in relation to Changes of the 3IoGn. 213 



products have failed, no one of such products having been found to 

 possess in perfection the property of acting upon fat in the manner de- 

 scribed in this paper as pecuUar to the pancreas. By the term " pancreatine," 

 then, I desire to represent the entire propei'ties of the pancreas extracted 

 in a convenient form for keeping, for experiment, and for administration as 

 a remedial agent. 



One part of the pure pancreatine dried, without mixture with malt-dust, 

 will digest at least sixteen parts of lard, and enable it to form a thick creamy 

 emulsion, with about 100 parts of water. The emulsion thus formed 

 presents in every respect the characters and qualities of the emulsion pro- 

 duced by the fresh pancreas already described. In this way therefore the 

 active principles of the pancreas may be obtained and preseived in a form 

 suitable for experiment in the laboratory and for administration as a reme- 

 dial agent. 



The third object of my investigations has especially occupied my atten- 

 tion in a long series of experiments at the Royal Hospital for Diseases of 

 the Chest. Full details of these and of the results obtained have been 

 published from time to time, during the last four years, in the medical jour- 

 nals ; I shall not, therefore, occupy the time of the Society with any account 

 of them in this paper. 



II. On a supposed Connexion between the Amount of Rainfall 

 and the Changes of the Moon/^ being an extract of a Letter 

 from J. H. N. Hennessey, Esq., First Assistant on the Great 

 Trigonometrical Survey of India, to General Sabine, R.A., 

 Pres. R.S. Communicated by the President. Received No- 

 vember 7, 1867. 



Allow me now to say a few words in connexion with the enclosed paper. 

 There appears to prevail a behef, more or less popular, to the effect that 

 more rain falls at the changes of the moon " than on the intermediate 

 days of a lunation. As I happened to possess a recoird of the rainfall at 

 the office of the Superintendent of the Great Trigonometrical Survey of 

 Mussoorie, extending over thirteen consecutive years, I obtained Colonel 

 Walker's permission to make use of the register, in connexion with this 

 popular belief. 



The results tabulated have been obtained by employing an average daily 

 fall as the means for comparing the fall at **the changes" with that at 

 intermediate intervals. The m>ethod of calculation adopted is explained in 

 the footnote to the Table. The annual average result may be stated 

 thus : — 



inch. 



At " the changes" of the moon the piean daily fall of rain is. . 0'4f!6 

 petwe-^n tbe php-Pges " pf the mooii the ippan dfijly f^U is. , , . 0*323 



