180 MISCELLANEOUS NOTES 



the crustufeans. These latter were watelied for several iliiys, till they died in fact, and 

 were tlieii exainiiieil. Nutliiiig developed from them, ami iiothiiij; was seen on separation of 

 tlnir slulls. One has not lieen able so far to make any further experiments in this 

 direction. Assuming that the initial observation and deduetion were correct, anil there was 

 no opportunity for error tn creej) in as far as one can see, these crustaceans, which have not 

 been fully identified, wouhl rei]uire to have their hard shells decalcified, and then be 

 examined in serial section, before ami alt( r being in contact with the bilharzia embryos. 

 The method of examination would be both ditlicult and tedious, but it might repay the 

 time spent upon it. I liope to repeat the original experiment and investigate the suiiject 

 more fully. In this connection Loos's suggestive work on ISilharzia has to be remembered, 

 wliile, granting that these crustaceans are (Mracwla, one must not forget that the members of 

 this genus are said to be flesh-eaters, which might account for tlw apiiarent act of ingestion. 



I had intended giving details of calculations carried t)ul at the reijuest of the late 

 1'. .M. (). of the Egyptian army with the object of discovering whether a dietary of meat, 

 vegetables and dura (millet), could with advantage be substituted for one of meat, vegetables 

 ami wheat flour, for the mi'U of Sudanese battalions. I Karn, however, that the recent 

 researches of Chittenden embodied in his work entitled " I'lnixinliKtiail Kfoiiomii in Xiitril'mn" 

 have "clearlv shown tlie necossitv of matt'rially modifying the views on diet reiiuirements 

 in health that are given in nld and recent standard works on dii't " (Chalmers Watson). 

 Conseijuentlv, until one becomes fanuliar witii lliese ailered views it would probably serve no 

 purpose to introduce the tables and deductions wliiiii I had prepared. 



In concluding this, the part of the Second lieport. — for wliiili 1 am personally 

 responsible — I would take an opportunity of expressing my indrhteilness to |lr. lleaiii fur 

 his exet'llent photographic work, and t(j Jlr. jiutlci'. I'ireetor of the (iame I'reservation 

 Department, for kindly identifying various mammals ami birds for me. ilr. Friedriehs has 

 rendered useful assistance in animal experiments and latterly in museum and histological 

 Acknowicdg- work. Jly thanks are due to Mr. Theobald and Mr. Austen for much kind help, and to 



mcnts 



Mr. Richard Muir for the great care and trouble he expended in the preparation of the 

 numerous plates. Mr, JIacduff Simpson has been good enough to aid me very considerably 

 in the correction of proofs. 



