rrttoMf THh «? Cotta* UUniversity of Maber Moscow, Idaho, September 2*.-Professor J. M. AW drieh,.faead of the dspsrtmelftsf bh* Hr of the university, has ffttinid from a toot In which ho lijvu*tif*tta the iaoocts of western anil and alkaline lakea in Utah, Nevada and CeHfomie. He waa-abeeat over two months and ItmM man than *}ve thousand mitas, fit# hundrod of which was .by m and aotomobtlo.Professor Aldrich said: “Aftar studying Inaaet Ufa at Groat Sattlaka I ▼fatted tha email soda lakca at Ham, Nov.; thee Pyramid tad Wiaahameta lakee, in Nevada; Mona lake, la California, and than I returned to Nevada to examine Walker lak#. After that I took the narrow guage railroad down to Owen’s lake, Cat Lake EHiere, In eouthern California, aud a small borax lake one hundred milee north of San Frandaoo were the Mat lakes which I visited oo my trip, *. though I did eome eoHocting arodad San-Fran-eiaco bay and oo the ocean shovo of eouthern California.The principal insects of these lakes are few in ipecieo-that is, the cob insects which regularly brood fat thli salt and alkaline water are flies of tha genus SphydrfL Thera are only throe species of those, each having interest* ing peculiarities. Bphydra gracilis is a email spades, occurring in enormous numbers in Great Salt lake, bat not found in any other lake that I visited. Along the Southern Pacific cutoff west of Ogden It is a groat nuisance in trains that eroas the lake.‘The second species, Ephydra Mans, is the one the Indians use aa food at Mono lake. They used to eotlect it for food also at Soda lakes, and it proved to be the same kind that the Mexieane used at a large alkaline lake weet of the eity of Mexico.‘At Mono lake Twastoo early to And the Indiana collecting the fly, but I found plenty of material to illustrate all the stages of the insect. The maggot fives in the strongly alkaline water of the lake. Oa reaching its full ska it attaches-itself to something in the bottom of tha lake aad tha outer skin beeomas a hard, brown shall, within which the iaaoet changes into the papa stage preliminary to becoming the adult fly.‘Normady the fly is ready to emerge in a weak or so, whieh It does by poshing off the end of the shall aad floating ap to the surface. In the latter part of tha when the insects areabundant there is a good deal of windy weather aad many of tha Meets in tha pupa stage are detached from the bottom of the lake aad float to the surface. They are then washed ashore by tha wind, forming windrows on the fanned that are sometimes two feat in depth. This is the time when tha Indians collect them for food. They spraad these brown-shoUed papa oat in tha son to dry and after they are thoroughly dried they rub off the brittle ahoQs and winnow them oat. The resulting material looks like a small sort of rice, being the cleaned aad dried papa of the fly. It is eaHad by tha ladi-aas ‘koo-taake/^add Is aasAdtasasy fly'WSm* W »a ■•»****sasttatotbH ve beet fake gra-uits, k waters atatihdwg. a MtgnstaoanMfl! saiter sodaerfaoth.The third opoeice, Bphytaa sata-paea, is found only tnwattr that |s a sort/ fresh. netar occurring I**** the other issrim are found.. At tfaa sometime It isnever found ia perfectly pars water. .“Another insect used as a food by the Indians of the Mono lake retools a large, smooth, eaterpUler tha* feeds00 tha foliage efynOew,fine. Indiaasmake smudges under the trig): aad when the smoke ascends through tha trees in softs! sat density flw eater* piUamdrep to tW ground. Tae Udi snsdry thorn and keep the®, cpofciag thorn in a tort of stew. I hoard of this several timeo around Mono lake, bat did not sns thorn cooking fhninasst until py last msrniag there.The Indiana am sensfaivs about being Inagkdd at, aad they always deny that they set eofasrpillfers whoa Ant approached. Flashy, through these-rietanoeof one of tha whit* rseidaati,1 got a squaw to show p a pat of soap which she had on haad from the day bafora. By flaking out n tsterpUJar and noting part of it Ideawnatratad to hsrthat I hod a seiaotific intarost ia the sobjsct aad sha afterward'ehewod me her eupply of dried inaeets, and at my urgent solid tattoo add it to me at n moderate pries.”* _1prtoehofPrththqnflera