566 



One of these is soluble in water to a slight extent without suflPering 

 decomposition, while the other is immediately decomposed on coming 

 into contact with water ; the former being the real proto-iodide de- 

 scribed by Boullay, and the latter being a biniodide, a salt of which 

 no particular description had hitherto been given, but which was 

 probably the compound noticed by Sir Humphry Davy as being of 

 a brilliant orange colour. The author found that this biniodide sub- 

 limes at a temperature of 356° F., while the proto-iodide, if protected 

 from the contact of air, may be heated to redness without subliming. 

 The author did not succeed in obtaining a combination of tin and 

 iodine corresponding to the sesquioxide, although Boullay supposes 

 that such was the composition of some yellow crystals which were 

 formed by the mixture of solutions of proto-chloride of tin and of 

 iodide of potassium. A more detailed account of the properties of 

 the iodides of tin is reserved for a future communication. 



Supplement to a Paper " On the Nervous Ganglia of the Uterus." 

 By Robert Lee, M.D., F.R.S., Fellow of the Royal College of Phy- 

 sicians. 



The author is confirmed in his views regarding the arrangement 

 of the nervous filaments distributed to the uterus, as described in his 

 papers printed in the Philosophical Transactions for 184<1 and 1842, 

 by his recent dissection of a gravid uterus at the full period, and 

 which he considers as demonstrative of the accuracy of all the state- 

 ments which are contained in those communications. 



