This very peculiar disease appears generally as a severe attack of catarrh, with asthmatic symptoms superadded. The lining membrane of the eyes, nose, throat and lungs is all more or less affected. The patient suffers from headache, sometimes severe, sneezing, irritation of the nose and throat, with a dry, harassing cough. The asthmatic attacks come on generally towards evening, and last from one to three hours, causing great distress. Hay fever is not a very common complaint, and only attacks those persons who, from some peculiarity of constitution, are susceptible to the causes producing it. It is supposed to be caused by the inhalation of the pungent aroma of spring grass and hay; but the inhalation of the powder of ipecacuanha will also produce it in certain individuals. In the United States, where the rose is largely cultivated, similar attacks sometimes occur; it is then called rose fever or rose catarrh. The best treatment is change of air - to the sea-side, if possible. During the attacks antispasmodics, such as sal volatile, ether, or an emetic if the patient is able to bear it, inhalations of hot steam medicated with creosote, carbolic acid, or turpentine, will be found useful. When the attack passes off, the general health should be improved by tonics, diet, etc.