TABLE II.

THE LHT SYSTEM IN ITS ORIGINAL 1962 FORM^a

I	II	III	IV
Nucleic acid	Capsid symmetry	Naked (N) or enveloped (E)	Capsid diameter or no. of capsomeres	Viruses	Groups
			100–130 Å	White clover mosaic, potato X, cactus potato F, pea stripe, wheat stripe	RHN 115
		N	170–200 Å	Tobacco mosaic, Vigna sinensis, cucumber 3	RHN 185
	H		250 Å	Barley stripe mosaic	RNH 250
			90–100 Å	Influenza, fowl plague	I myxo (1)
RNA		e	170 Å	Parainfluenzae, mumps, sendai, Newcastle disease, rinderpest, Carré disease, measles	II myxo (1)
			32	Turnip yellow mosaic	RCN 32
	C	N	60	Bushystunt, polio (2)	—
			92	Wound tumor, REO III	REO
	H	E	90–100 Å	Vaccinia, infectious pustular dermatitis	Pox (3)
			12	ϕX174	DCN 12
			42	Polyoma, warts, SV40	Schizo (4)
		N	252	Adeno, infectious canine hepatitis	Adeno
DNA	C			Gal (5)
			812	Tipula	DCN 812
		E	162	Herpes, varicella, pseudorabies	Herpes
	B	N	Prism	Phage T2	T pairs
			Icosahedron	Phage of B. megaterium	—

^aThe table contains abbreviations which are those of the phanerogram.