SUMMARY Migraine occurs with increased frequency in patients with systemic lupus erythematosus and in subjects suffering from Raynaud's phenomenon without any underlying connective tissue disorders. A possible link between migraine and Raynaud's phenomenon has been suggested. Two rheumatic conditions where Raynaud's phenomenon occurs very commonly are scleroderma and primary Sjogren's syndrome. It is possible that migraine is also common in these disorders but has been unrecognised. Therefore, the prevalence of migraine was assessed by a questionnaire in 191 subjects suffering from various connective tissue disorders and control subjects. Migraine was diagnosed in 16/35 (46%) patients with primary Sjogren's syndrome, 31/97 (32%) patients with scleroderma, 4/33 (12%) patients with rheumatoid arthritis/Sjogren's syndrome compared with 3/26 (11%) control subjects. A family history of headaches was more common in the patient groups than controls. There was a significant association between occurrence of Raynaud's phenomenon and migraine. Small vessel pathology may underlie both migraine and Raynaud's phenomenon in these connective tissue disorders-as has been suggested in systemic lupus erythematosus. The findings stress the need to ask specifically about complaints of headaches/migraines in patients with scleroderma and primary Sjogren's syndrome for the appropriate total management of these patients.

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John Passmore (1914–2004) was a renowned Australian empirical philosopher and historian of ideas. In this book, which was originally published in 1952, Passmore's intention was to disentangle certain main themes in Hume's philosophy and to show how they relate to Hume's main philosophic purpose. Rather than offering a detailed commentary, the text provides an account based on specificity and critical scholarship, seeking to complement the other more comprehensive works on Hume's philosophy that had become available around the same time. This book will be of value to anyone with an interest in perspectives on Hume and Passmore's philosophical approach.

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