PRESIDEXT S ADDRESS. 9 



terial for the i'urtlier working-out of the phylogeny of the Panorpoid Orders, 

 and especially the Faiuily Micropteri/giclae, which has its head(iuarters there; and 

 also to collect material in all Neuropteroid groups, in order to study it in con- 

 junction with the closely allied Australian fauna. Good results were obtained, 

 except in the Rotorua-Taupo district, where the rainbow-trout introduced into 

 the lakes had exercised the first call on the insect-fauna in which he was mainly 

 interested. But this visit to Xew Zealand opened the way for an offer of the 

 position of Biologist at the Cawthron Institute, about to be established at Nel- 

 son, which Dr. Tillyard has decided to accept; and, after to-day, we part with 

 our Senior Fellow next to Dr. Petrie. He has been a member of the Society's 

 research-staff for ti\e years; and his papers during that period have been a 

 prominent feature in the Society's Proceeding's. He has not only studied the 

 Australian aspect of world-problems, but he has tried to open up world-problems 

 from the Australian standpoint; which is my idea of what Australian workers, 

 as far as possible and according to their oppoiiunities and resources, should aim 

 at doing. In losing Dr. Tillyard, what we regret is not so much that we are 

 losing him as a Fellow of the Society, but that Australia is losing, him ; and 

 that our hopes, that an opening for doing what he is about to undertake in New 

 Zealand, would be available for him in Australia, have Ijeen without result. Con- 

 sequently, it merely remains for me to voice, on behalf of the Council and of the 

 Society, our apjjreciation of the importance of the work which he has been doing 

 so enthusiastically for so long; of expressing our sincere regret at losing him, 

 not only as a Fellow of the Society, but most of all as a scientific worker resi- 

 dent in Australia; and of wishing him every success in the new sphere of work 

 which he is about to enter. At any rate, I think he will l)e ready to acknowledge 

 that his official connection with the Society has been helpful to him as a research- 

 worker: and that the fruits of his work are, in some measure, his tribute to the 

 memory of the Ijenevolent and far-seeing man who made the Society's Fellowships 

 possible. 



Dr. H. S. Halcro Wardlaw, Linnean Maeleay Fellow in Physiology, 

 utilised the opportunity afforded liy the outbreak of ]ineumonic influenza, in the 

 early part of the year, of making an important investigation in connection there- 

 with. Measurements of the oys'gen-capacity and other properties of the Ijlood 

 of influenza patients were made; and the results were embodied in a paper en- 

 titled "The Venous Oxygen-content and the Alkaline Reserve of the Blood in 

 Pneumonic Influenza," which was published in Part iii. of the Proceedings for 

 ]919. The work on the reciprocal dialysis of blood and milk has been con- 

 tinued. The effect on the total solid matter, ash, chlorine, phosphoric acid, and 

 calcium has been examined. It has been found, contrary to expectation, that, 

 when milk is dialysed against the blood of the same species, certain of the in- 

 organic constituents of the milk pass into the blood in considerable quantity. 

 The further surprising result, that the presence of the red corpuscles of the blood 

 materially diminishes (his effect has also been obtained. An interpretation of 

 these pheno.nena has not yet been arrived at, and will need further consideration ; 

 as do also some other incompleted investigations. Dr. Wardlaw resigned his 

 Fellowship in September, in order to take up a University appointment as Lec- 

 turer and Demonstrator in Physiology; and, in this capacity, he is taking part in 

 the work of the Commission appointed to investigate the prevalence of disease 

 among mine-workers at Broken Hill. While regretting the Society's loss of Dr. 

 Wardlaw as a Linnean Jlacleav Fellow, I would offer to him, on behalf of the 



