. British bee journal & bee-keepers adviser. Bees. 190 THE BEITISH BEE JOURNAL. [June 15, 191G. then holding the test tube slantwise pour some strong sulphuric acid down the side of the tube. A brown ring will appear if nitrates or nitrites are present. Another method of detecting ammonia is to heat a weighed mixture of soil and soda-lime, and lead away by means of a tube the am- moniacal vapour given off. If hydro- chloric acid gas is then introduced, dense white fumes of ammonium chloride will be observed. For a complete quantitative estimation of nitrogen costty apparatus and considerab
. British bee journal & bee-keepers adviser. Bees. 190 THE BEITISH BEE JOURNAL. [June 15, 191G. then holding the test tube slantwise pour some strong sulphuric acid down the side of the tube. A brown ring will appear if nitrates or nitrites are present. Another method of detecting ammonia is to heat a weighed mixture of soil and soda-lime, and lead away by means of a tube the am- moniacal vapour given off. If hydro- chloric acid gas is then introduced, dense white fumes of ammonium chloride will be observed. For a complete quantitative estimation of nitrogen costty apparatus and considerable experience and manipu- lative skill are Correspondents desiring an answer in the next issue should send questions to reach this office NOT LATER than the FIRST POST on MONDAY MORNING. Only SPECIALLY URGENT ques- tions will be replied to by post if a STAMPED addressed envelopn is enclosed. All questions must be accompanied by the sender's name and address, not necessarily for publication, but as a guarantee of good faith. There is no fee for ansicering questions. W. Parsons (Lincoln).âWe should say you are quite right in your deductdon. A Novice (Wilts).âTny giving the syrup warm. The symptoms you describe point to " Isle of Wight" disease. As this attackis the adult bee it often happens that a swarm ex- hibits symptoms several weeks before they are iseen in the parent stoc'k. S. Berry (Ohacombe).âWe douht Wihether you will ibe able to save ttiem. Make a solution of one teaspoonful of Izal in a pint of water and spray some of it on the alighting -boards every day, sending dt well into the entrance, or try one of the advertised remedies. Keep the hive supplied with disinfectantânapihthaline, ot a small ishallow vessel, such as a tin lid, contain- ing Izal. A piece of perforated ziinc over the lid will prevent the bees getting into the iiqudd. Ldme the ground occasionally round the hives (quicklime is the best) or sprinkle it with Izal or carbo
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